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This file is example/README. It contains brief descriptions of the
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examples in this directory. Also listed are scripts from the Expect
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archive at ftp.cme.nist.gov (See Expect's README for how to retrieve
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these from). You are welcome to send me additional scripts. A number
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of Expect scripts are also available in the Tcl archive, available via
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anonymous ftp at harbor.ecn.purdue.edu
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Note that on some systems, some of the scripts (notably kibitz and
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dislocate) require that Expect be installed. (Merely compiling the
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expect binary is not enough.)
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--------------------
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Expect scripts (See next section for example Tk scripts)
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--------------------
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Entries marked with "m" have their own man page.
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Entries marked with "a" live in the Expect archive (see above).
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archie - mails back response after talking to archie ftp-catalog.
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m autoexpect - generate an Expect script from watching a session
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autopasswd - runs passwd non-interactively for superuser.
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a bc - Uses bc to do arbitrary precision math.
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beer.exp - 99 Bottles of Beer On The Wall, Expect-style.
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beer.exp.out - sample output from beer.exp (but you really have to
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run it to see the timing aspect).
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a bonfield.exp - solve Jim Bonfield's puzzle that won the 1991 Obfuscated
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C Code contest.
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carpal - warn about typing for too long without a break.
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chess.exp - has two chess games play each other.
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m cryptdir - encrypt all files in a directory.
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m decryptdir - decrypt all files in a directory.
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m dislocate - allow disconnection/reconnection to background processes.
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dvorak - dvorak keyboard.
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a eftp - ftp client with miscellaneous frills (also see rftp below).
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expectd.proto - telnet daemon.
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ftp-inband - does file transfer over telnet, rlogin, etc.
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ftp-rfc - retrieve a DoD RFC from uunet via anonymous ftp.
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ftp-talk-radio - gets "Internet Talk Radio" files from a host.
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gethostbyaddr - translates internet address to name (with a higher
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success rate than nslookup). Easier to use, too.
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irsh - run interactive commands via rsh
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m kibitz - lets two people control a program at the same time.
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Lots of uses. I.e., You can help another person remotely.
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Can run an editor and log a transcript of a conversation.
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a libro-II - connect to Libro-II, the NIST library catalog.
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lpunlock - unhangs a printer which says it is "waiting for lock".
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a mirror_file - mirror a file from another ftp site, copying file only
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if changed.
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a mirror_dir - mirror a directory from another ftp site, copying only
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files which have changed.
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m mkpasswd - generates good passwords, optionally runs passwd with them.
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a mx - return any MX records for the given host.
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a noidle - run a shell which avoids being 'autologged out'.
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a pager.alpha - sends a message to a (Alpha brand) pager.
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a pager.mercury - sends a message to a (Mercury brand) pager.
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m passmass - sets passwd on many machines simultaneously.
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passwd.html - form to change a login passwd
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passwd.cgi - CGI script to respond to passwd.html form
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a ping-and-page - Ping list of hosts. If any down, page system admin.
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read1char - read a single character for the shell, Perl, etc.
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reprompt - like timed-read but reprompt after given amount of time.
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rlogin-cwd - rlogin giving you same current working directory.
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(Compare to telnet-cwd and xrlogin.)
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robohunt - plays the game of hunt (from Berkeley).
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It's more of a wild player than good, but amusing to watch.
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Fun to throw against people who don't know about it.
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rogue.exp - finds a good game of rogue.
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rftp - recursive ftp (assumes UNIX-style ftpd at other end).
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a s-key-rlogin - Automate rlogin (or telnet) using s/key
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a scripttoggle - Like UNIX script command, but allow enabling/disabling
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of recording.
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a slip.shar - scripts to keep your SLIP link alive.
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su.exp - start up an 'su' and run the argument.
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telnet-cwd - telnet giving you same current working directory.
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telnet-in-bg - put telnet (or any program) in bg, saving all remaining
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output to a logfile.
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a term-rlogin - run Term over rlogin. Good for traversing PPP/SLIP or
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firewall rlogin connections.
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a term-start - start up Term (a sophisticated UNIX-to-UNIX serial line
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handler).
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a timed-choice - offer user a timed choice of responses.
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timed-read - a timed read for the shell, Perl, etc. Compare with
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reprompt example.
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m timed-run - run a program for only a given amount of time.
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a try-phone-list - automate logging in to remote system, trying numbers
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from a list until finding one that works.
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m unbuffer - disables output buffering that normally occurs when
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programs are redirected.
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virterm - example of terminal emulation and expect operations on
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character graphics using arrays (compare to term_expect
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(below) which uses Tk widget).
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vrfy - verifies an email address using SMTP/VRFY to remote site.
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a waste-collection - Contact NIST service for hazardous waste pickup.
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weather - retrieves weather forecasts.
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m xkibitz - similar to kibitz but uses X Window System for handling
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communication. Also, allows users to be added dynamically.
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xrlogin - rlogin giving you same DISPLAY. (Compare to rlogin-cwd.)
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To run, for example, chess.exp, type:
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expect chess.exp
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If expect is installed and your system supports the #! magic you can
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invoke it as:
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chess.exp
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Each of these examples necessarily depends upon other binaries in the
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system. For example, chess.exp depends upon the "usual" UNIX chess
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program being present. If any of these programs are different,
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it may cause the associated script to misbehave.
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Please use the ".exp" extension on scripts that might otherwise have
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names that could be confused with the real program, such as "rogue.exp".
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Scripts that have unique names do not need the extension, such as "rftp".
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--------------------
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Sample Expectk scripts
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--------------------
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Entries marked with "m" have their own man page.
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term_expect - template for doing expect operations on character
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graphics.
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m tknewsbiff - pops up a window (or plays sounds, etc) when news
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arrives in selected newsgroups.
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tkpasswd - Tk GUI for changing passwords.
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tkterm - Tk terminal emulator in a Tk text widget.
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xpstat - provide an X window front end to the xpilot game.
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--------------------
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Sample C and C++ programs that use the Expect library
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--------------------
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chesslib.c - same thing as chess.exp, but in C.
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chesslib2.c - ditto, but uses popen and stream-style I/O.
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chesslib++.c - ditto, but for C++.
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m unbuffer.c - same as unbuffer example but standalone
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You may change the value of CC or CPLUSPLUS in the Makefile, to
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compile under gcc or other compilers. However, you may have to edit
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the lines defining where the libraries are.
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