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This is gdb.info, produced by makeinfo version 4.8 from ./gdb.texinfo.

This is gdb.info, produced by makeinfo version 4.8 from ./gdb.texinfo.

INFO-DIR-SECTION Software development

INFO-DIR-SECTION Software development

START-INFO-DIR-ENTRY

START-INFO-DIR-ENTRY

* Gdb: (gdb).                     The GNU debugger.

* Gdb: (gdb).                     The GNU debugger.

END-INFO-DIR-ENTRY

END-INFO-DIR-ENTRY

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2010 Free Software Foundation, Inc.

2010 Free Software Foundation, Inc.

   Permission is granted to copy, distribute and/or modify this document

   Permission is granted to copy, distribute and/or modify this document

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under the terms of the GNU Free Documentation License, Version 1.1 or

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Invariant Sections being "Free Software" and "Free Software Needs Free

Invariant Sections being "Free Software" and "Free Software Needs Free

Documentation", with the Front-Cover Texts being "A GNU Manual," and

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with the Back-Cover Texts as in (a) below.

with the Back-Cover Texts as in (a) below.

   (a) The FSF's Back-Cover Text is: "You are free to copy and modify

   (a) The FSF's Back-Cover Text is: "You are free to copy and modify

this GNU Manual.  Buying copies from GNU Press supports the FSF in

this GNU Manual.  Buying copies from GNU Press supports the FSF in

developing GNU and promoting software freedom."

developing GNU and promoting software freedom."

   This file documents the GNU debugger GDB.

   This file documents the GNU debugger GDB.

   This is the Ninth Edition, of `Debugging with GDB: the GNU

   This is the Ninth Edition, of `Debugging with GDB: the GNU

Source-Level Debugger' for GDB (GDB) Version 7.1.

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   Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,

   Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,

1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,

1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,

2010 Free Software Foundation, Inc.

2010 Free Software Foundation, Inc.

   Permission is granted to copy, distribute and/or modify this document

   Permission is granted to copy, distribute and/or modify this document

under the terms of the GNU Free Documentation License, Version 1.1 or

under the terms of the GNU Free Documentation License, Version 1.1 or

any later version published by the Free Software Foundation; with the

any later version published by the Free Software Foundation; with the

Invariant Sections being "Free Software" and "Free Software Needs Free

Invariant Sections being "Free Software" and "Free Software Needs Free

Documentation", with the Front-Cover Texts being "A GNU Manual," and

Documentation", with the Front-Cover Texts being "A GNU Manual," and

with the Back-Cover Texts as in (a) below.

with the Back-Cover Texts as in (a) below.

   (a) The FSF's Back-Cover Text is: "You are free to copy and modify

   (a) The FSF's Back-Cover Text is: "You are free to copy and modify

this GNU Manual.  Buying copies from GNU Press supports the FSF in

this GNU Manual.  Buying copies from GNU Press supports the FSF in

developing GNU and promoting software freedom."

developing GNU and promoting software freedom."

File: gdb.info,  Node: Readline Movement Commands,  Next: Readline Killing Commands,  Prev: Readline Bare Essentials,  Up: Readline Interaction

File: gdb.info,  Node: Readline Movement Commands,  Next: Readline Killing Commands,  Prev: Readline Bare Essentials,  Up: Readline Interaction

31.2.2 Readline Movement Commands

31.2.2 Readline Movement Commands

---------------------------------

---------------------------------

The above table describes the most basic keystrokes that you need in

The above table describes the most basic keystrokes that you need in

order to do editing of the input line.  For your convenience, many

order to do editing of the input line.  For your convenience, many

other commands have been added in addition to `C-b', `C-f', `C-d', and

other commands have been added in addition to `C-b', `C-f', `C-d', and

.  Here are some commands for moving more rapidly about the line.

.  Here are some commands for moving more rapidly about the line.

`C-a'

`C-a'

     Move to the start of the line.

     Move to the start of the line.

`C-e'

`C-e'

     Move to the end of the line.

     Move to the end of the line.

`M-f'

`M-f'

     Move forward a word, where a word is composed of letters and

     Move forward a word, where a word is composed of letters and

     digits.

     digits.

`M-b'

`M-b'

     Move backward a word.

     Move backward a word.

`C-l'

`C-l'

     Clear the screen, reprinting the current line at the top.

     Clear the screen, reprinting the current line at the top.

   Notice how `C-f' moves forward a character, while `M-f' moves

   Notice how `C-f' moves forward a character, while `M-f' moves

forward a word.  It is a loose convention that control keystrokes

forward a word.  It is a loose convention that control keystrokes

operate on characters while meta keystrokes operate on words.

operate on characters while meta keystrokes operate on words.

File: gdb.info,  Node: Readline Killing Commands,  Next: Readline Arguments,  Prev: Readline Movement Commands,  Up: Readline Interaction

File: gdb.info,  Node: Readline Killing Commands,  Next: Readline Arguments,  Prev: Readline Movement Commands,  Up: Readline Interaction

31.2.3 Readline Killing Commands

31.2.3 Readline Killing Commands

--------------------------------

--------------------------------

"Killing" text means to delete the text from the line, but to save it

"Killing" text means to delete the text from the line, but to save it

away for later use, usually by "yanking" (re-inserting) it back into

away for later use, usually by "yanking" (re-inserting) it back into

the line.  (`Cut' and `paste' are more recent jargon for `kill' and

the line.  (`Cut' and `paste' are more recent jargon for `kill' and

`yank'.)

`yank'.)

   If the description for a command says that it `kills' text, then you

   If the description for a command says that it `kills' text, then you

can be sure that you can get the text back in a different (or the same)

can be sure that you can get the text back in a different (or the same)

place later.

place later.

   When you use a kill command, the text is saved in a "kill-ring".

   When you use a kill command, the text is saved in a "kill-ring".

Any number of consecutive kills save all of the killed text together, so

Any number of consecutive kills save all of the killed text together, so

that when you yank it back, you get it all.  The kill ring is not line

that when you yank it back, you get it all.  The kill ring is not line

specific; the text that you killed on a previously typed line is

specific; the text that you killed on a previously typed line is

available to be yanked back later, when you are typing another line.

available to be yanked back later, when you are typing another line.

   Here is the list of commands for killing text.

   Here is the list of commands for killing text.

`C-k'

`C-k'

     Kill the text from the current cursor position to the end of the

     Kill the text from the current cursor position to the end of the

     line.

     line.

`M-d'

`M-d'

     Kill from the cursor to the end of the current word, or, if between

     Kill from the cursor to the end of the current word, or, if between

     words, to the end of the next word.  Word boundaries are the same

     words, to the end of the next word.  Word boundaries are the same

     as those used by `M-f'.

     as those used by `M-f'.

`M-'

`M-'

     Kill from the cursor the start of the current word, or, if between

     Kill from the cursor the start of the current word, or, if between

     words, to the start of the previous word.  Word boundaries are the

     words, to the start of the previous word.  Word boundaries are the

     same as those used by `M-b'.

     same as those used by `M-b'.

`C-w'

`C-w'

     Kill from the cursor to the previous whitespace.  This is

     Kill from the cursor to the previous whitespace.  This is

     different than `M-' because the word boundaries differ.

     different than `M-' because the word boundaries differ.

   Here is how to "yank" the text back into the line.  Yanking means to

   Here is how to "yank" the text back into the line.  Yanking means to

copy the most-recently-killed text from the kill buffer.

copy the most-recently-killed text from the kill buffer.

`C-y'

`C-y'

     Yank the most recently killed text back into the buffer at the

     Yank the most recently killed text back into the buffer at the

     cursor.

     cursor.

`M-y'

`M-y'

     Rotate the kill-ring, and yank the new top.  You can only do this

     Rotate the kill-ring, and yank the new top.  You can only do this

     if the prior command is `C-y' or `M-y'.

     if the prior command is `C-y' or `M-y'.

File: gdb.info,  Node: Readline Arguments,  Next: Searching,  Prev: Readline Killing Commands,  Up: Readline Interaction

File: gdb.info,  Node: Readline Arguments,  Next: Searching,  Prev: Readline Killing Commands,  Up: Readline Interaction

31.2.4 Readline Arguments

31.2.4 Readline Arguments

-------------------------

-------------------------

You can pass numeric arguments to Readline commands.  Sometimes the

You can pass numeric arguments to Readline commands.  Sometimes the

argument acts as a repeat count, other times it is the sign of the

argument acts as a repeat count, other times it is the sign of the

argument that is significant.  If you pass a negative argument to a

argument that is significant.  If you pass a negative argument to a

command which normally acts in a forward direction, that command will

command which normally acts in a forward direction, that command will

act in a backward direction.  For example, to kill text back to the

act in a backward direction.  For example, to kill text back to the

start of the line, you might type `M-- C-k'.

start of the line, you might type `M-- C-k'.

   The general way to pass numeric arguments to a command is to type

   The general way to pass numeric arguments to a command is to type

meta digits before the command.  If the first `digit' typed is a minus

meta digits before the command.  If the first `digit' typed is a minus

sign (`-'), then the sign of the argument will be negative.  Once you

sign (`-'), then the sign of the argument will be negative.  Once you

have typed one meta digit to get the argument started, you can type the

have typed one meta digit to get the argument started, you can type the

remainder of the digits, and then the command.  For example, to give

remainder of the digits, and then the command.  For example, to give

the `C-d' command an argument of 10, you could type `M-1 0 C-d', which

the `C-d' command an argument of 10, you could type `M-1 0 C-d', which

will delete the next ten characters on the input line.

will delete the next ten characters on the input line.

File: gdb.info,  Node: Searching,  Prev: Readline Arguments,  Up: Readline Interaction

File: gdb.info,  Node: Searching,  Prev: Readline Arguments,  Up: Readline Interaction

31.2.5 Searching for Commands in the History

31.2.5 Searching for Commands in the History

--------------------------------------------

--------------------------------------------

Readline provides commands for searching through the command history

Readline provides commands for searching through the command history

for lines containing a specified string.  There are two search modes:

for lines containing a specified string.  There are two search modes:

"incremental" and "non-incremental".

"incremental" and "non-incremental".

   Incremental searches begin before the user has finished typing the

   Incremental searches begin before the user has finished typing the

search string.  As each character of the search string is typed,

search string.  As each character of the search string is typed,

Readline displays the next entry from the history matching the string

Readline displays the next entry from the history matching the string

typed so far.  An incremental search requires only as many characters

typed so far.  An incremental search requires only as many characters

as needed to find the desired history entry.  To search backward in the

as needed to find the desired history entry.  To search backward in the

history for a particular string, type `C-r'.  Typing `C-s' searches

history for a particular string, type `C-r'.  Typing `C-s' searches

forward through the history.  The characters present in the value of

forward through the history.  The characters present in the value of

the `isearch-terminators' variable are used to terminate an incremental

the `isearch-terminators' variable are used to terminate an incremental

search.  If that variable has not been assigned a value, the  and

search.  If that variable has not been assigned a value, the  and

`C-J' characters will terminate an incremental search.  `C-g' will

`C-J' characters will terminate an incremental search.  `C-g' will

abort an incremental search and restore the original line.  When the

abort an incremental search and restore the original line.  When the

search is terminated, the history entry containing the search string

search is terminated, the history entry containing the search string

becomes the current line.

becomes the current line.

   To find other matching entries in the history list, type `C-r' or

   To find other matching entries in the history list, type `C-r' or

`C-s' as appropriate.  This will search backward or forward in the

`C-s' as appropriate.  This will search backward or forward in the

history for the next entry matching the search string typed so far.

history for the next entry matching the search string typed so far.

Any other key sequence bound to a Readline command will terminate the

Any other key sequence bound to a Readline command will terminate the

search and execute that command.  For instance, a  will terminate

search and execute that command.  For instance, a  will terminate

the search and accept the line, thereby executing the command from the

the search and accept the line, thereby executing the command from the

history list.  A movement command will terminate the search, make the

history list.  A movement command will terminate the search, make the

last line found the current line, and begin editing.

last line found the current line, and begin editing.

   Readline remembers the last incremental search string.  If two

   Readline remembers the last incremental search string.  If two

`C-r's are typed without any intervening characters defining a new

`C-r's are typed without any intervening characters defining a new

search string, any remembered search string is used.

search string, any remembered search string is used.

   Non-incremental searches read the entire search string before

   Non-incremental searches read the entire search string before

starting to search for matching history lines.  The search string may be

starting to search for matching history lines.  The search string may be

typed by the user or be part of the contents of the current line.

typed by the user or be part of the contents of the current line.

File: gdb.info,  Node: Readline Init File,  Next: Bindable Readline Commands,  Prev: Readline Interaction,  Up: Command Line Editing

File: gdb.info,  Node: Readline Init File,  Next: Bindable Readline Commands,  Prev: Readline Interaction,  Up: Command Line Editing

31.3 Readline Init File

31.3 Readline Init File

=======================

=======================

Although the Readline library comes with a set of Emacs-like

Although the Readline library comes with a set of Emacs-like

keybindings installed by default, it is possible to use a different set

keybindings installed by default, it is possible to use a different set

of keybindings.  Any user can customize programs that use Readline by

of keybindings.  Any user can customize programs that use Readline by

putting commands in an "inputrc" file, conventionally in his home

putting commands in an "inputrc" file, conventionally in his home

directory.  The name of this file is taken from the value of the

directory.  The name of this file is taken from the value of the

environment variable `INPUTRC'.  If that variable is unset, the default

environment variable `INPUTRC'.  If that variable is unset, the default

is `~/.inputrc'.

is `~/.inputrc'.

   When a program which uses the Readline library starts up, the init

   When a program which uses the Readline library starts up, the init

file is read, and the key bindings are set.

file is read, and the key bindings are set.

   In addition, the `C-x C-r' command re-reads this init file, thus

   In addition, the `C-x C-r' command re-reads this init file, thus

incorporating any changes that you might have made to it.

incorporating any changes that you might have made to it.

* Menu:

* Menu:

* Readline Init File Syntax::   Syntax for the commands in the inputrc file.

* Readline Init File Syntax::   Syntax for the commands in the inputrc file.

* Conditional Init Constructs:: Conditional key bindings in the inputrc file.

* Conditional Init Constructs:: Conditional key bindings in the inputrc file.

* Sample Init File::            An example inputrc file.

* Sample Init File::            An example inputrc file.

File: gdb.info,  Node: Readline Init File Syntax,  Next: Conditional Init Constructs,  Up: Readline Init File

File: gdb.info,  Node: Readline Init File Syntax,  Next: Conditional Init Constructs,  Up: Readline Init File

31.3.1 Readline Init File Syntax

31.3.1 Readline Init File Syntax

--------------------------------

--------------------------------

There are only a few basic constructs allowed in the Readline init

There are only a few basic constructs allowed in the Readline init

file.  Blank lines are ignored.  Lines beginning with a `#' are

file.  Blank lines are ignored.  Lines beginning with a `#' are

comments.  Lines beginning with a `$' indicate conditional constructs

comments.  Lines beginning with a `$' indicate conditional constructs

(*note Conditional Init Constructs::).  Other lines denote variable

(*note Conditional Init Constructs::).  Other lines denote variable

settings and key bindings.

settings and key bindings.

Variable Settings

Variable Settings

     You can modify the run-time behavior of Readline by altering the

     You can modify the run-time behavior of Readline by altering the

     values of variables in Readline using the `set' command within the

     values of variables in Readline using the `set' command within the

     init file.  The syntax is simple:

     init file.  The syntax is simple:

          set VARIABLE VALUE

          set VARIABLE VALUE

     Here, for example, is how to change from the default Emacs-like

     Here, for example, is how to change from the default Emacs-like

     key binding to use `vi' line editing commands:

     key binding to use `vi' line editing commands:

          set editing-mode vi

          set editing-mode vi

     Variable names and values, where appropriate, are recognized

     Variable names and values, where appropriate, are recognized

     without regard to case.  Unrecognized variable names are ignored.

     without regard to case.  Unrecognized variable names are ignored.

     Boolean variables (those that can be set to on or off) are set to

     Boolean variables (those that can be set to on or off) are set to

     on if the value is null or empty, ON (case-insensitive), or 1.

     on if the value is null or empty, ON (case-insensitive), or 1.

     Any other value results in the variable being set to off.

     Any other value results in the variable being set to off.

     A great deal of run-time behavior is changeable with the following

     A great deal of run-time behavior is changeable with the following

     variables.

     variables.

    `bell-style'

    `bell-style'

          Controls what happens when Readline wants to ring the

          Controls what happens when Readline wants to ring the

          terminal bell.  If set to `none', Readline never rings the

          terminal bell.  If set to `none', Readline never rings the

          bell.  If set to `visible', Readline uses a visible bell if

          bell.  If set to `visible', Readline uses a visible bell if

          one is available.  If set to `audible' (the default),

          one is available.  If set to `audible' (the default),

          Readline attempts to ring the terminal's bell.

          Readline attempts to ring the terminal's bell.

    `bind-tty-special-chars'

    `bind-tty-special-chars'

          If set to `on', Readline attempts to bind the control

          If set to `on', Readline attempts to bind the control

          characters treated specially by the kernel's terminal driver

          characters treated specially by the kernel's terminal driver

          to their Readline equivalents.

          to their Readline equivalents.

    `comment-begin'

    `comment-begin'

          The string to insert at the beginning of the line when the

          The string to insert at the beginning of the line when the

          `insert-comment' command is executed.  The default value is

          `insert-comment' command is executed.  The default value is

          `"#"'.

          `"#"'.

    `completion-ignore-case'

    `completion-ignore-case'

          If set to `on', Readline performs filename matching and

          If set to `on', Readline performs filename matching and

          completion in a case-insensitive fashion.  The default value

          completion in a case-insensitive fashion.  The default value

          is `off'.

          is `off'.

    `completion-query-items'

    `completion-query-items'

          The number of possible completions that determines when the

          The number of possible completions that determines when the

          user is asked whether the list of possibilities should be

          user is asked whether the list of possibilities should be

          displayed.  If the number of possible completions is greater

          displayed.  If the number of possible completions is greater

          than this value, Readline will ask the user whether or not he

          than this value, Readline will ask the user whether or not he

          wishes to view them; otherwise, they are simply listed.  This

          wishes to view them; otherwise, they are simply listed.  This

          variable must be set to an integer value greater than or

          variable must be set to an integer value greater than or

          equal to 0.  A negative value means Readline should never ask.

          equal to 0.  A negative value means Readline should never ask.

          The default limit is `100'.

          The default limit is `100'.

    `convert-meta'

    `convert-meta'

          If set to `on', Readline will convert characters with the

          If set to `on', Readline will convert characters with the

          eighth bit set to an ASCII key sequence by stripping the

          eighth bit set to an ASCII key sequence by stripping the

          eighth bit and prefixing an  character, converting them

          eighth bit and prefixing an  character, converting them

          to a meta-prefixed key sequence.  The default value is `on'.

          to a meta-prefixed key sequence.  The default value is `on'.

    `disable-completion'

    `disable-completion'

          If set to `On', Readline will inhibit word completion.

          If set to `On', Readline will inhibit word completion.

          Completion  characters will be inserted into the line as if

          Completion  characters will be inserted into the line as if

          they had been mapped to `self-insert'.  The default is `off'.

          they had been mapped to `self-insert'.  The default is `off'.

    `editing-mode'

    `editing-mode'

          The `editing-mode' variable controls which default set of key

          The `editing-mode' variable controls which default set of key

          bindings is used.  By default, Readline starts up in Emacs

          bindings is used.  By default, Readline starts up in Emacs

          editing mode, where the keystrokes are most similar to Emacs.

          editing mode, where the keystrokes are most similar to Emacs.

          This variable can be set to either `emacs' or `vi'.

          This variable can be set to either `emacs' or `vi'.

    `enable-keypad'

    `enable-keypad'

          When set to `on', Readline will try to enable the application

          When set to `on', Readline will try to enable the application

          keypad when it is called.  Some systems need this to enable

          keypad when it is called.  Some systems need this to enable

          the arrow keys.  The default is `off'.

          the arrow keys.  The default is `off'.

    `expand-tilde'

    `expand-tilde'

          If set to `on', tilde expansion is performed when Readline

          If set to `on', tilde expansion is performed when Readline

          attempts word completion.  The default is `off'.

          attempts word completion.  The default is `off'.

    `history-preserve-point'

    `history-preserve-point'

          If set to `on', the history code attempts to place point at

          If set to `on', the history code attempts to place point at

          the same location on each history line retrieved with

          the same location on each history line retrieved with

          `previous-history' or `next-history'.  The default is `off'.

          `previous-history' or `next-history'.  The default is `off'.

    `horizontal-scroll-mode'

    `horizontal-scroll-mode'

          This variable can be set to either `on' or `off'.  Setting it

          This variable can be set to either `on' or `off'.  Setting it

          to `on' means that the text of the lines being edited will

          to `on' means that the text of the lines being edited will

          scroll horizontally on a single screen line when they are

          scroll horizontally on a single screen line when they are

          longer than the width of the screen, instead of wrapping onto

          longer than the width of the screen, instead of wrapping onto

          a new screen line.  By default, this variable is set to `off'.

          a new screen line.  By default, this variable is set to `off'.

    `input-meta'

    `input-meta'

          If set to `on', Readline will enable eight-bit input (it will

          If set to `on', Readline will enable eight-bit input (it will

          not clear the eighth bit in the characters it reads),

          not clear the eighth bit in the characters it reads),

          regardless of what the terminal claims it can support.  The

          regardless of what the terminal claims it can support.  The

          default value is `off'.  The name `meta-flag' is a synonym

          default value is `off'.  The name `meta-flag' is a synonym

          for this variable.

          for this variable.

    `isearch-terminators'

    `isearch-terminators'

          The string of characters that should terminate an incremental

          The string of characters that should terminate an incremental

          search without subsequently executing the character as a

          search without subsequently executing the character as a

          command (*note Searching::).  If this variable has not been

          command (*note Searching::).  If this variable has not been

          given a value, the characters  and `C-J' will terminate

          given a value, the characters  and `C-J' will terminate

          an incremental search.

          an incremental search.

    `keymap'

    `keymap'

          Sets Readline's idea of the current keymap for key binding

          Sets Readline's idea of the current keymap for key binding

          commands.  Acceptable `keymap' names are `emacs',

          commands.  Acceptable `keymap' names are `emacs',

          `emacs-standard', `emacs-meta', `emacs-ctlx', `vi', `vi-move',

          `emacs-standard', `emacs-meta', `emacs-ctlx', `vi', `vi-move',

          `vi-command', and `vi-insert'.  `vi' is equivalent to

          `vi-command', and `vi-insert'.  `vi' is equivalent to

          `vi-command'; `emacs' is equivalent to `emacs-standard'.  The

          `vi-command'; `emacs' is equivalent to `emacs-standard'.  The

          default value is `emacs'.  The value of the `editing-mode'

          default value is `emacs'.  The value of the `editing-mode'

          variable also affects the default keymap.

          variable also affects the default keymap.

    `mark-directories'

    `mark-directories'

          If set to `on', completed directory names have a slash

          If set to `on', completed directory names have a slash

          appended.  The default is `on'.

          appended.  The default is `on'.

    `mark-modified-lines'

    `mark-modified-lines'

          This variable, when set to `on', causes Readline to display an

          This variable, when set to `on', causes Readline to display an

          asterisk (`*') at the start of history lines which have been

          asterisk (`*') at the start of history lines which have been

          modified.  This variable is `off' by default.

          modified.  This variable is `off' by default.

    `mark-symlinked-directories'

    `mark-symlinked-directories'

          If set to `on', completed names which are symbolic links to

          If set to `on', completed names which are symbolic links to

          directories have a slash appended (subject to the value of

          directories have a slash appended (subject to the value of

          `mark-directories').  The default is `off'.

          `mark-directories').  The default is `off'.

    `match-hidden-files'

    `match-hidden-files'

          This variable, when set to `on', causes Readline to match

          This variable, when set to `on', causes Readline to match

          files whose names begin with a `.' (hidden files) when

          files whose names begin with a `.' (hidden files) when

          performing filename completion, unless the leading `.' is

          performing filename completion, unless the leading `.' is

          supplied by the user in the filename to be completed.  This

          supplied by the user in the filename to be completed.  This

          variable is `on' by default.

          variable is `on' by default.

    `output-meta'

    `output-meta'

          If set to `on', Readline will display characters with the

          If set to `on', Readline will display characters with the

          eighth bit set directly rather than as a meta-prefixed escape

          eighth bit set directly rather than as a meta-prefixed escape

          sequence.  The default is `off'.

          sequence.  The default is `off'.

    `page-completions'

    `page-completions'

          If set to `on', Readline uses an internal `more'-like pager

          If set to `on', Readline uses an internal `more'-like pager

          to display a screenful of possible completions at a time.

          to display a screenful of possible completions at a time.

          This variable is `on' by default.

          This variable is `on' by default.

    `print-completions-horizontally'

    `print-completions-horizontally'

          If set to `on', Readline will display completions with matches

          If set to `on', Readline will display completions with matches

          sorted horizontally in alphabetical order, rather than down

          sorted horizontally in alphabetical order, rather than down

          the screen.  The default is `off'.

          the screen.  The default is `off'.

    `show-all-if-ambiguous'

    `show-all-if-ambiguous'

          This alters the default behavior of the completion functions.

          This alters the default behavior of the completion functions.

          If set to `on', words which have more than one possible

          If set to `on', words which have more than one possible

          completion cause the matches to be listed immediately instead

          completion cause the matches to be listed immediately instead

          of ringing the bell.  The default value is `off'.

          of ringing the bell.  The default value is `off'.

    `show-all-if-unmodified'

    `show-all-if-unmodified'

          This alters the default behavior of the completion functions

          This alters the default behavior of the completion functions

          in a fashion similar to SHOW-ALL-IF-AMBIGUOUS.  If set to

          in a fashion similar to SHOW-ALL-IF-AMBIGUOUS.  If set to

          `on', words which have more than one possible completion

          `on', words which have more than one possible completion

          without any possible partial completion (the possible

          without any possible partial completion (the possible

          completions don't share a common prefix) cause the matches to

          completions don't share a common prefix) cause the matches to

          be listed immediately instead of ringing the bell.  The

          be listed immediately instead of ringing the bell.  The

          default value is `off'.

          default value is `off'.

    `visible-stats'

    `visible-stats'

          If set to `on', a character denoting a file's type is

          If set to `on', a character denoting a file's type is

          appended to the filename when listing possible completions.

          appended to the filename when listing possible completions.

          The default is `off'.

          The default is `off'.

Key Bindings

Key Bindings

     The syntax for controlling key bindings in the init file is

     The syntax for controlling key bindings in the init file is

     simple.  First you need to find the name of the command that you

     simple.  First you need to find the name of the command that you

     want to change.  The following sections contain tables of the

     want to change.  The following sections contain tables of the

     command name, the default keybinding, if any, and a short

     command name, the default keybinding, if any, and a short

     description of what the command does.

     description of what the command does.

     Once you know the name of the command, simply place on a line in

     Once you know the name of the command, simply place on a line in

     the init file the name of the key you wish to bind the command to,

     the init file the name of the key you wish to bind the command to,

     a colon, and then the name of the command.  The name of the key

     a colon, and then the name of the command.  The name of the key

     can be expressed in different ways, depending on what you find most

     can be expressed in different ways, depending on what you find most

     comfortable.

     comfortable.

     In addition to command names, readline allows keys to be bound to

     In addition to command names, readline allows keys to be bound to

     a string that is inserted when the key is pressed (a MACRO).

     a string that is inserted when the key is pressed (a MACRO).

    KEYNAME: FUNCTION-NAME or MACRO

    KEYNAME: FUNCTION-NAME or MACRO

          KEYNAME is the name of a key spelled out in English.  For

          KEYNAME is the name of a key spelled out in English.  For

          example:

          example:

               Control-u: universal-argument

               Control-u: universal-argument

               Meta-Rubout: backward-kill-word

               Meta-Rubout: backward-kill-word

               Control-o: "> output"

               Control-o: "> output"

          In the above example, `C-u' is bound to the function

          In the above example, `C-u' is bound to the function

          `universal-argument', `M-DEL' is bound to the function

          `universal-argument', `M-DEL' is bound to the function

          `backward-kill-word', and `C-o' is bound to run the macro

          `backward-kill-word', and `C-o' is bound to run the macro

          expressed on the right hand side (that is, to insert the text

          expressed on the right hand side (that is, to insert the text

          `> output' into the line).

          `> output' into the line).

          A number of symbolic character names are recognized while

          A number of symbolic character names are recognized while

          processing this key binding syntax: DEL, ESC, ESCAPE, LFD,

          processing this key binding syntax: DEL, ESC, ESCAPE, LFD,

          NEWLINE, RET, RETURN, RUBOUT, SPACE, SPC, and TAB.

          NEWLINE, RET, RETURN, RUBOUT, SPACE, SPC, and TAB.

    "KEYSEQ": FUNCTION-NAME or MACRO

    "KEYSEQ": FUNCTION-NAME or MACRO

          KEYSEQ differs from KEYNAME above in that strings denoting an

          KEYSEQ differs from KEYNAME above in that strings denoting an

          entire key sequence can be specified, by placing the key

          entire key sequence can be specified, by placing the key

          sequence in double quotes.  Some GNU Emacs style key escapes

          sequence in double quotes.  Some GNU Emacs style key escapes

          can be used, as in the following example, but the special

          can be used, as in the following example, but the special

          character names are not recognized.

          character names are not recognized.

               "\C-u": universal-argument

               "\C-u": universal-argument

               "\C-x\C-r": re-read-init-file

               "\C-x\C-r": re-read-init-file

               "\e[11~": "Function Key 1"

               "\e[11~": "Function Key 1"

          In the above example, `C-u' is again bound to the function

          In the above example, `C-u' is again bound to the function

          `universal-argument' (just as it was in the first example),

          `universal-argument' (just as it was in the first example),

          `C-x C-r' is bound to the function `re-read-init-file', and

          `C-x C-r' is bound to the function `re-read-init-file', and

          ` <[> <1> <1> <~>' is bound to insert the text `Function

          ` <[> <1> <1> <~>' is bound to insert the text `Function

          Key 1'.

          Key 1'.

     The following GNU Emacs style escape sequences are available when

     The following GNU Emacs style escape sequences are available when

     specifying key sequences:

     specifying key sequences:

    `\C-'

    `\C-'

          control prefix

          control prefix

    `\M-'

    `\M-'

          meta prefix

          meta prefix

    `\e'

    `\e'

          an escape character

          an escape character

    `\\'

    `\\'

          backslash

          backslash

    `\"'

    `\"'

          <">, a double quotation mark

          <">, a double quotation mark

    `\''

    `\''

          <'>, a single quote or apostrophe

          <'>, a single quote or apostrophe

     In addition to the GNU Emacs style escape sequences, a second set

     In addition to the GNU Emacs style escape sequences, a second set

     of backslash escapes is available:

     of backslash escapes is available:

    `\a'

    `\a'

          alert (bell)

          alert (bell)

    `\b'

    `\b'

          backspace

          backspace

    `\d'

    `\d'

          delete

          delete

    `\f'

    `\f'

          form feed

          form feed

    `\n'

    `\n'

          newline

          newline

    `\r'

    `\r'

          carriage return

          carriage return

    `\t'

    `\t'

          horizontal tab

          horizontal tab

    `\v'

    `\v'

          vertical tab

          vertical tab

    `\NNN'

    `\NNN'

          the eight-bit character whose value is the octal value NNN

          the eight-bit character whose value is the octal value NNN

          (one to three digits)

          (one to three digits)

    `\xHH'

    `\xHH'

          the eight-bit character whose value is the hexadecimal value

          the eight-bit character whose value is the hexadecimal value

          HH (one or two hex digits)

          HH (one or two hex digits)

     When entering the text of a macro, single or double quotes must be

     When entering the text of a macro, single or double quotes must be

     used to indicate a macro definition.  Unquoted text is assumed to

     used to indicate a macro definition.  Unquoted text is assumed to

     be a function name.  In the macro body, the backslash escapes

     be a function name.  In the macro body, the backslash escapes

     described above are expanded.  Backslash will quote any other

     described above are expanded.  Backslash will quote any other

     character in the macro text, including `"' and `''.  For example,

     character in the macro text, including `"' and `''.  For example,

     the following binding will make `C-x \' insert a single `\' into

     the following binding will make `C-x \' insert a single `\' into

     the line:

     the line:

          "\C-x\\": "\\"

          "\C-x\\": "\\"

File: gdb.info,  Node: Conditional Init Constructs,  Next: Sample Init File,  Prev: Readline Init File Syntax,  Up: Readline Init File

File: gdb.info,  Node: Conditional Init Constructs,  Next: Sample Init File,  Prev: Readline Init File Syntax,  Up: Readline Init File

31.3.2 Conditional Init Constructs

31.3.2 Conditional Init Constructs

----------------------------------

----------------------------------

Readline implements a facility similar in spirit to the conditional

Readline implements a facility similar in spirit to the conditional

compilation features of the C preprocessor which allows key bindings

compilation features of the C preprocessor which allows key bindings

and variable settings to be performed as the result of tests.  There

and variable settings to be performed as the result of tests.  There

are four parser directives used.

are four parser directives used.

`$if'

`$if'

     The `$if' construct allows bindings to be made based on the

     The `$if' construct allows bindings to be made based on the

     editing mode, the terminal being used, or the application using

     editing mode, the terminal being used, or the application using

     Readline.  The text of the test extends to the end of the line; no

     Readline.  The text of the test extends to the end of the line; no

     characters are required to isolate it.

     characters are required to isolate it.

    `mode'

    `mode'

          The `mode=' form of the `$if' directive is used to test

          The `mode=' form of the `$if' directive is used to test

          whether Readline is in `emacs' or `vi' mode.  This may be

          whether Readline is in `emacs' or `vi' mode.  This may be

          used in conjunction with the `set keymap' command, for

          used in conjunction with the `set keymap' command, for

          instance, to set bindings in the `emacs-standard' and

          instance, to set bindings in the `emacs-standard' and

          `emacs-ctlx' keymaps only if Readline is starting out in

          `emacs-ctlx' keymaps only if Readline is starting out in

          `emacs' mode.

          `emacs' mode.

    `term'

    `term'

          The `term=' form may be used to include terminal-specific key

          The `term=' form may be used to include terminal-specific key

          bindings, perhaps to bind the key sequences output by the

          bindings, perhaps to bind the key sequences output by the

          terminal's function keys.  The word on the right side of the

          terminal's function keys.  The word on the right side of the

          `=' is tested against both the full name of the terminal and

          `=' is tested against both the full name of the terminal and

          the portion of the terminal name before the first `-'.  This

          the portion of the terminal name before the first `-'.  This

          allows `sun' to match both `sun' and `sun-cmd', for instance.

          allows `sun' to match both `sun' and `sun-cmd', for instance.

    `application'

    `application'

          The APPLICATION construct is used to include

          The APPLICATION construct is used to include

          application-specific settings.  Each program using the

          application-specific settings.  Each program using the

          Readline library sets the APPLICATION NAME, and you can test

          Readline library sets the APPLICATION NAME, and you can test

          for a particular value.  This could be used to bind key

          for a particular value.  This could be used to bind key

          sequences to functions useful for a specific program.  For

          sequences to functions useful for a specific program.  For

          instance, the following command adds a key sequence that

          instance, the following command adds a key sequence that

          quotes the current or previous word in Bash:

          quotes the current or previous word in Bash:

               $if Bash

               $if Bash

               # Quote the current or previous word

               # Quote the current or previous word

               "\C-xq": "\eb\"\ef\""

               "\C-xq": "\eb\"\ef\""

               $endif

               $endif

`$endif'

`$endif'

     This command, as seen in the previous example, terminates an `$if'

     This command, as seen in the previous example, terminates an `$if'

     command.

     command.

`$else'

`$else'

     Commands in this branch of the `$if' directive are executed if the

     Commands in this branch of the `$if' directive are executed if the

     test fails.

     test fails.

`$include'

`$include'

     This directive takes a single filename as an argument and reads

     This directive takes a single filename as an argument and reads

     commands and bindings from that file.  For example, the following

     commands and bindings from that file.  For example, the following

     directive reads from `/etc/inputrc':

     directive reads from `/etc/inputrc':

          $include /etc/inputrc

          $include /etc/inputrc

File: gdb.info,  Node: Sample Init File,  Prev: Conditional Init Constructs,  Up: Readline Init File

File: gdb.info,  Node: Sample Init File,  Prev: Conditional Init Constructs,  Up: Readline Init File

31.3.3 Sample Init File

31.3.3 Sample Init File

-----------------------

-----------------------

Here is an example of an INPUTRC file.  This illustrates key binding,

Here is an example of an INPUTRC file.  This illustrates key binding,

variable assignment, and conditional syntax.

variable assignment, and conditional syntax.

     # This file controls the behaviour of line input editing for

     # This file controls the behaviour of line input editing for

     # programs that use the GNU Readline library.  Existing

     # programs that use the GNU Readline library.  Existing

     # programs include FTP, Bash, and GDB.

     # programs include FTP, Bash, and GDB.

     #

     #

     # You can re-read the inputrc file with C-x C-r.

     # You can re-read the inputrc file with C-x C-r.

     # Lines beginning with '#' are comments.

     # Lines beginning with '#' are comments.

     #

     #

     # First, include any systemwide bindings and variable

     # First, include any systemwide bindings and variable

     # assignments from /etc/Inputrc

     # assignments from /etc/Inputrc

     $include /etc/Inputrc

     $include /etc/Inputrc

     #

     #

     # Set various bindings for emacs mode.

     # Set various bindings for emacs mode.

     set editing-mode emacs

     set editing-mode emacs

     $if mode=emacs

     $if mode=emacs

     Meta-Control-h:    backward-kill-word      Text after the function name is ignored

     Meta-Control-h:    backward-kill-word      Text after the function name is ignored

     #

     #

     # Arrow keys in keypad mode

     # Arrow keys in keypad mode

     #

     #

     #"\M-OD":        backward-char

     #"\M-OD":        backward-char

     #"\M-OC":        forward-char

     #"\M-OC":        forward-char

     #"\M-OA":        previous-history

     #"\M-OA":        previous-history

     #"\M-OB":        next-history

     #"\M-OB":        next-history

     #

     #

     # Arrow keys in ANSI mode

     # Arrow keys in ANSI mode

     #

     #

     "\M-[D":        backward-char

     "\M-[D":        backward-char

     "\M-[C":        forward-char

     "\M-[C":        forward-char

     "\M-[A":        previous-history

     "\M-[A":        previous-history

     "\M-[B":        next-history

     "\M-[B":        next-history

     #

     #

     # Arrow keys in 8 bit keypad mode

     # Arrow keys in 8 bit keypad mode

     #

     #

     #"\M-\C-OD":       backward-char

     #"\M-\C-OD":       backward-char

     #"\M-\C-OC":       forward-char

     #"\M-\C-OC":       forward-char

     #"\M-\C-OA":       previous-history

     #"\M-\C-OA":       previous-history

     #"\M-\C-OB":       next-history

     #"\M-\C-OB":       next-history

     #

     #

     # Arrow keys in 8 bit ANSI mode

     # Arrow keys in 8 bit ANSI mode

     #

     #

     #"\M-\C-[D":       backward-char

     #"\M-\C-[D":       backward-char

     #"\M-\C-[C":       forward-char

     #"\M-\C-[C":       forward-char

     #"\M-\C-[A":       previous-history

     #"\M-\C-[A":       previous-history

     #"\M-\C-[B":       next-history

     #"\M-\C-[B":       next-history

     C-q: quoted-insert

     C-q: quoted-insert

     $endif

     $endif

     # An old-style binding.  This happens to be the default.

     # An old-style binding.  This happens to be the default.

     TAB: complete

     TAB: complete

     # Macros that are convenient for shell interaction

     # Macros that are convenient for shell interaction

     $if Bash

     $if Bash

     # edit the path

     # edit the path

     "\C-xp": "PATH=${PATH}\e\C-e\C-a\ef\C-f"

     "\C-xp": "PATH=${PATH}\e\C-e\C-a\ef\C-f"

     # prepare to type a quoted word --

     # prepare to type a quoted word --

     # insert open and close double quotes

     # insert open and close double quotes

     # and move to just after the open quote

     # and move to just after the open quote

     "\C-x\"": "\"\"\C-b"

     "\C-x\"": "\"\"\C-b"

     # insert a backslash (testing backslash escapes

     # insert a backslash (testing backslash escapes

     # in sequences and macros)

     # in sequences and macros)

     "\C-x\\": "\\"

     "\C-x\\": "\\"

     # Quote the current or previous word

     # Quote the current or previous word

     "\C-xq": "\eb\"\ef\""

     "\C-xq": "\eb\"\ef\""

     # Add a binding to refresh the line, which is unbound

     # Add a binding to refresh the line, which is unbound

     "\C-xr": redraw-current-line

     "\C-xr": redraw-current-line

     # Edit variable on current line.

     # Edit variable on current line.

     "\M-\C-v": "\C-a\C-k$\C-y\M-\C-e\C-a\C-y="

     "\M-\C-v": "\C-a\C-k$\C-y\M-\C-e\C-a\C-y="

     $endif

     $endif

     # use a visible bell if one is available

     # use a visible bell if one is available

     set bell-style visible

     set bell-style visible

     # don't strip characters to 7 bits when reading

     # don't strip characters to 7 bits when reading

     set input-meta on

     set input-meta on

     # allow iso-latin1 characters to be inserted rather

     # allow iso-latin1 characters to be inserted rather

     # than converted to prefix-meta sequences

     # than converted to prefix-meta sequences

     set convert-meta off

     set convert-meta off

     # display characters with the eighth bit set directly

     # display characters with the eighth bit set directly

     # rather than as meta-prefixed characters

     # rather than as meta-prefixed characters

     set output-meta on

     set output-meta on

     # if there are more than 150 possible completions for

     # if there are more than 150 possible completions for

     # a word, ask the user if he wants to see all of them

     # a word, ask the user if he wants to see all of them

     set completion-query-items 150

     set completion-query-items 150

     # For FTP

     # For FTP

     $if Ftp

     $if Ftp

     "\C-xg": "get \M-?"

     "\C-xg": "get \M-?"

     "\C-xt": "put \M-?"

     "\C-xt": "put \M-?"

     "\M-.": yank-last-arg

     "\M-.": yank-last-arg

     $endif

     $endif

File: gdb.info,  Node: Bindable Readline Commands,  Next: Readline vi Mode,  Prev: Readline Init File,  Up: Command Line Editing

File: gdb.info,  Node: Bindable Readline Commands,  Next: Readline vi Mode,  Prev: Readline Init File,  Up: Command Line Editing

31.4 Bindable Readline Commands

31.4 Bindable Readline Commands

===============================

===============================

* Menu:

* Menu:

* Commands For Moving::         Moving about the line.

* Commands For Moving::         Moving about the line.

* Commands For History::        Getting at previous lines.

* Commands For History::        Getting at previous lines.

* Commands For Text::           Commands for changing text.

* Commands For Text::           Commands for changing text.

* Commands For Killing::        Commands for killing and yanking.

* Commands For Killing::        Commands for killing and yanking.

* Numeric Arguments::           Specifying numeric arguments, repeat counts.

* Numeric Arguments::           Specifying numeric arguments, repeat counts.

* Commands For Completion::     Getting Readline to do the typing for you.

* Commands For Completion::     Getting Readline to do the typing for you.

* Keyboard Macros::             Saving and re-executing typed characters

* Keyboard Macros::             Saving and re-executing typed characters

* Miscellaneous Commands::      Other miscellaneous commands.

* Miscellaneous Commands::      Other miscellaneous commands.

   This section describes Readline commands that may be bound to key

   This section describes Readline commands that may be bound to key

sequences.  Command names without an accompanying key sequence are

sequences.  Command names without an accompanying key sequence are

unbound by default.

unbound by default.

   In the following descriptions, "point" refers to the current cursor

   In the following descriptions, "point" refers to the current cursor

position, and "mark" refers to a cursor position saved by the

position, and "mark" refers to a cursor position saved by the

`set-mark' command.  The text between the point and mark is referred to

`set-mark' command.  The text between the point and mark is referred to

as the "region".

as the "region".

File: gdb.info,  Node: Commands For Moving,  Next: Commands For History,  Up: Bindable Readline Commands

File: gdb.info,  Node: Commands For Moving,  Next: Commands For History,  Up: Bindable Readline Commands

31.4.1 Commands For Moving

31.4.1 Commands For Moving

--------------------------

--------------------------

`beginning-of-line (C-a)'

`beginning-of-line (C-a)'

     Move to the start of the current line.

     Move to the start of the current line.

`end-of-line (C-e)'

`end-of-line (C-e)'

     Move to the end of the line.

     Move to the end of the line.

`forward-char (C-f)'

`forward-char (C-f)'

     Move forward a character.

     Move forward a character.

`backward-char (C-b)'

`backward-char (C-b)'

     Move back a character.

     Move back a character.

`forward-word (M-f)'

`forward-word (M-f)'

     Move forward to the end of the next word.  Words are composed of

     Move forward to the end of the next word.  Words are composed of

     letters and digits.

     letters and digits.

`backward-word (M-b)'

`backward-word (M-b)'

     Move back to the start of the current or previous word.  Words are

     Move back to the start of the current or previous word.  Words are

     composed of letters and digits.

     composed of letters and digits.

`clear-screen (C-l)'

`clear-screen (C-l)'

     Clear the screen and redraw the current line, leaving the current

     Clear the screen and redraw the current line, leaving the current

     line at the top of the screen.

     line at the top of the screen.

`redraw-current-line ()'

`redraw-current-line ()'

     Refresh the current line.  By default, this is unbound.

     Refresh the current line.  By default, this is unbound.

File: gdb.info,  Node: Commands For History,  Next: Commands For Text,  Prev: Commands For Moving,  Up: Bindable Readline Commands

File: gdb.info,  Node: Commands For History,  Next: Commands For Text,  Prev: Commands For Moving,  Up: Bindable Readline Commands

31.4.2 Commands For Manipulating The History

31.4.2 Commands For Manipulating The History

--------------------------------------------

--------------------------------------------

`accept-line (Newline or Return)'

`accept-line (Newline or Return)'

     Accept the line regardless of where the cursor is.  If this line is

     Accept the line regardless of where the cursor is.  If this line is

     non-empty, it may be added to the history list for future recall

     non-empty, it may be added to the history list for future recall

     with `add_history()'.  If this line is a modified history line,

     with `add_history()'.  If this line is a modified history line,

     the history line is restored to its original state.

     the history line is restored to its original state.

`previous-history (C-p)'

`previous-history (C-p)'

     Move `back' through the history list, fetching the previous

     Move `back' through the history list, fetching the previous

     command.

     command.

`next-history (C-n)'

`next-history (C-n)'

     Move `forward' through the history list, fetching the next command.

     Move `forward' through the history list, fetching the next command.

`beginning-of-history (M-<)'

`beginning-of-history (M-<)'

     Move to the first line in the history.

     Move to the first line in the history.

`end-of-history (M->)'

`end-of-history (M->)'

     Move to the end of the input history, i.e., the line currently

     Move to the end of the input history, i.e., the line currently

     being entered.

     being entered.

`reverse-search-history (C-r)'

`reverse-search-history (C-r)'

     Search backward starting at the current line and moving `up'

     Search backward starting at the current line and moving `up'

     through the history as necessary.  This is an incremental search.

     through the history as necessary.  This is an incremental search.

`forward-search-history (C-s)'

`forward-search-history (C-s)'

     Search forward starting at the current line and moving `down'

     Search forward starting at the current line and moving `down'

     through the the history as necessary.  This is an incremental

     through the the history as necessary.  This is an incremental

     search.

     search.

`non-incremental-reverse-search-history (M-p)'

`non-incremental-reverse-search-history (M-p)'

     Search backward starting at the current line and moving `up'

     Search backward starting at the current line and moving `up'

     through the history as necessary using a non-incremental search

     through the history as necessary using a non-incremental search

     for a string supplied by the user.

     for a string supplied by the user.

`non-incremental-forward-search-history (M-n)'

`non-incremental-forward-search-history (M-n)'

     Search forward starting at the current line and moving `down'

     Search forward starting at the current line and moving `down'

     through the the history as necessary using a non-incremental search

     through the the history as necessary using a non-incremental search

     for a string supplied by the user.

     for a string supplied by the user.

`history-search-forward ()'

`history-search-forward ()'

     Search forward through the history for the string of characters

     Search forward through the history for the string of characters

     between the start of the current line and the point.  This is a

     between the start of the current line and the point.  This is a

     non-incremental search.  By default, this command is unbound.

     non-incremental search.  By default, this command is unbound.

`history-search-backward ()'

`history-search-backward ()'

     Search backward through the history for the string of characters

     Search backward through the history for the string of characters

     between the start of the current line and the point.  This is a

     between the start of the current line and the point.  This is a

     non-incremental search.  By default, this command is unbound.

     non-incremental search.  By default, this command is unbound.

`yank-nth-arg (M-C-y)'

`yank-nth-arg (M-C-y)'

     Insert the first argument to the previous command (usually the

     Insert the first argument to the previous command (usually the

     second word on the previous line) at point.  With an argument N,

     second word on the previous line) at point.  With an argument N,

     insert the Nth word from the previous command (the words in the

     insert the Nth word from the previous command (the words in the

     previous command begin with word 0).  A negative argument inserts

     previous command begin with word 0).  A negative argument inserts

     the Nth word from the end of the previous command.  Once the

     the Nth word from the end of the previous command.  Once the

     argument N is computed, the argument is extracted as if the `!N'

     argument N is computed, the argument is extracted as if the `!N'

     history expansion had been specified.

     history expansion had been specified.

`yank-last-arg (M-. or M-_)'

`yank-last-arg (M-. or M-_)'

     Insert last argument to the previous command (the last word of the

     Insert last argument to the previous command (the last word of the

     previous history entry).  With an argument, behave exactly like

     previous history entry).  With an argument, behave exactly like

     `yank-nth-arg'.  Successive calls to `yank-last-arg' move back

     `yank-nth-arg'.  Successive calls to `yank-last-arg' move back

     through the history list, inserting the last argument of each line

     through the history list, inserting the last argument of each line

     in turn.  The history expansion facilities are used to extract the

     in turn.  The history expansion facilities are used to extract the

     last argument, as if the `!$' history expansion had been specified.

     last argument, as if the `!$' history expansion had been specified.

File: gdb.info,  Node: Commands For Text,  Next: Commands For Killing,  Prev: Commands For History,  Up: Bindable Readline Commands

File: gdb.info,  Node: Commands For Text,  Next: Commands For Killing,  Prev: Commands For History,  Up: Bindable Readline Commands

31.4.3 Commands For Changing Text

31.4.3 Commands For Changing Text

---------------------------------

---------------------------------

`delete-char (C-d)'

`delete-char (C-d)'

     Delete the character at point.  If point is at the beginning of

     Delete the character at point.  If point is at the beginning of

     the line, there are no characters in the line, and the last

     the line, there are no characters in the line, and the last

     character typed was not bound to `delete-char', then return EOF.

     character typed was not bound to `delete-char', then return EOF.

`backward-delete-char (Rubout)'

`backward-delete-char (Rubout)'

     Delete the character behind the cursor.  A numeric argument means

     Delete the character behind the cursor.  A numeric argument means

     to kill the characters instead of deleting them.

     to kill the characters instead of deleting them.

`forward-backward-delete-char ()'

`forward-backward-delete-char ()'

     Delete the character under the cursor, unless the cursor is at the

     Delete the character under the cursor, unless the cursor is at the

     end of the line, in which case the character behind the cursor is

     end of the line, in which case the character behind the cursor is

     deleted.  By default, this is not bound to a key.

     deleted.  By default, this is not bound to a key.

`quoted-insert (C-q or C-v)'

`quoted-insert (C-q or C-v)'

     Add the next character typed to the line verbatim.  This is how to

     Add the next character typed to the line verbatim.  This is how to

     insert key sequences like `C-q', for example.

     insert key sequences like `C-q', for example.

`tab-insert (M-)'

`tab-insert (M-)'

     Insert a tab character.

     Insert a tab character.

`self-insert (a, b, A, 1, !, ...)'

`self-insert (a, b, A, 1, !, ...)'

     Insert yourself.

     Insert yourself.

`transpose-chars (C-t)'

`transpose-chars (C-t)'

     Drag the character before the cursor forward over the character at

     Drag the character before the cursor forward over the character at

     the cursor, moving the cursor forward as well.  If the insertion

     the cursor, moving the cursor forward as well.  If the insertion

     point is at the end of the line, then this transposes the last two

     point is at the end of the line, then this transposes the last two

     characters of the line.  Negative arguments have no effect.

     characters of the line.  Negative arguments have no effect.

`transpose-words (M-t)'

`transpose-words (M-t)'

     Drag the word before point past the word after point, moving point

     Drag the word before point past the word after point, moving point

     past that word as well.  If the insertion point is at the end of

     past that word as well.  If the insertion point is at the end of

     the line, this transposes the last two words on the line.

     the line, this transposes the last two words on the line.

`upcase-word (M-u)'

`upcase-word (M-u)'

     Uppercase the current (or following) word.  With a negative

     Uppercase the current (or following) word.  With a negative

     argument, uppercase the previous word, but do not move the cursor.

     argument, uppercase the previous word, but do not move the cursor.

`downcase-word (M-l)'

`downcase-word (M-l)'

     Lowercase the current (or following) word.  With a negative

     Lowercase the current (or following) word.  With a negative

     argument, lowercase the previous word, but do not move the cursor.

     argument, lowercase the previous word, but do not move the cursor.

`capitalize-word (M-c)'

`capitalize-word (M-c)'

     Capitalize the current (or following) word.  With a negative

     Capitalize the current (or following) word.  With a negative

     argument, capitalize the previous word, but do not move the cursor.

     argument, capitalize the previous word, but do not move the cursor.

`overwrite-mode ()'

`overwrite-mode ()'

     Toggle overwrite mode.  With an explicit positive numeric argument,

     Toggle overwrite mode.  With an explicit positive numeric argument,

     switches to overwrite mode.  With an explicit non-positive numeric

     switches to overwrite mode.  With an explicit non-positive numeric

     argument, switches to insert mode.  This command affects only

     argument, switches to insert mode.  This command affects only

     `emacs' mode; `vi' mode does overwrite differently.  Each call to

     `emacs' mode; `vi' mode does overwrite differently.  Each call to

     `readline()' starts in insert mode.

     `readline()' starts in insert mode.

     In overwrite mode, characters bound to `self-insert' replace the

     In overwrite mode, characters bound to `self-insert' replace the

     text at point rather than pushing the text to the right.

     text at point rather than pushing the text to the right.

     Characters bound to `backward-delete-char' replace the character

     Characters bound to `backward-delete-char' replace the character

     before point with a space.

     before point with a space.

     By default, this command is unbound.

     By default, this command is unbound.

File: gdb.info,  Node: Commands For Killing,  Next: Numeric Arguments,  Prev: Commands For Text,  Up: Bindable Readline Commands

File: gdb.info,  Node: Commands For Killing,  Next: Numeric Arguments,  Prev: Commands For Text,  Up: Bindable Readline Commands

31.4.4 Killing And Yanking

31.4.4 Killing And Yanking

--------------------------

--------------------------

`kill-line (C-k)'

`kill-line (C-k)'

     Kill the text from point to the end of the line.

     Kill the text from point to the end of the line.

`backward-kill-line (C-x Rubout)'

`backward-kill-line (C-x Rubout)'

     Kill backward to the beginning of the line.

     Kill backward to the beginning of the line.

`unix-line-discard (C-u)'

`unix-line-discard (C-u)'

     Kill backward from the cursor to the beginning of the current line.

     Kill backward from the cursor to the beginning of the current line.

`kill-whole-line ()'

`kill-whole-line ()'

     Kill all characters on the current line, no matter where point is.

     Kill all characters on the current line, no matter where point is.

     By default, this is unbound.

     By default, this is unbound.

`kill-word (M-d)'

`kill-word (M-d)'

     Kill from point to the end of the current word, or if between

     Kill from point to the end of the current word, or if between

     words, to the end of the next word.  Word boundaries are the same

     words, to the end of the next word.  Word boundaries are the same

     as `forward-word'.

     as `forward-word'.

`backward-kill-word (M-)'

`backward-kill-word (M-)'

     Kill the word behind point.  Word boundaries are the same as

     Kill the word behind point.  Word boundaries are the same as

     `backward-word'.

     `backward-word'.

`unix-word-rubout (C-w)'

`unix-word-rubout (C-w)'

     Kill the word behind point, using white space as a word boundary.

     Kill the word behind point, using white space as a word boundary.

     The killed text is saved on the kill-ring.

     The killed text is saved on the kill-ring.

`unix-filename-rubout ()'

`unix-filename-rubout ()'

     Kill the word behind point, using white space and the slash

     Kill the word behind point, using white space and the slash

     character as the word boundaries.  The killed text is saved on the

     character as the word boundaries.  The killed text is saved on the

     kill-ring.

     kill-ring.

`delete-horizontal-space ()'

`delete-horizontal-space ()'

     Delete all spaces and tabs around point.  By default, this is

     Delete all spaces and tabs around point.  By default, this is

     unbound.

     unbound.

`kill-region ()'

`kill-region ()'

     Kill the text in the current region.  By default, this command is

     Kill the text in the current region.  By default, this command is

     unbound.

     unbound.

`copy-region-as-kill ()'

`copy-region-as-kill ()'

     Copy the text in the region to the kill buffer, so it can be yanked

     Copy the text in the region to the kill buffer, so it can be yanked

     right away.  By default, this command is unbound.

     right away.  By default, this command is unbound.