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>alias</TITLE
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><H1
><A
NAME="ALIAS-COMMAND">alias</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2927"
></A
><H2
>Name</H2
>alias&nbsp;--&nbsp;Manipulate command line aliases</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN2930"><H2
>Synopsis</H2
><P
><B
CLASS="COMMAND"
>alias</B
>  {<TT
CLASS="REPLACEABLE"
><I
> name</I
></TT
>} [<TT
CLASS="REPLACEABLE"
><I
> value</I
></TT
>]</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2937"
></A
><H2
>Arguments</H2
><DIV
CLASS="INFORMALTABLE"
><A
NAME="AEN2939"><P
></P
><TABLE
BORDER="1"
CLASS="CALSTABLE"
><THEAD
><TR
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Name</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Type</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Description</TH
><TH
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Default</TH
></TR
></THEAD
><TBODY
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>name</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Name</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>The name for this alias.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
><TR
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><TT
CLASS="REPLACEABLE"
><I
>value</I
></TT
></TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>String</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
>Replacement value for the alias.</TD
><TD
WIDTH="25%"
ALIGN="LEFT"
VALIGN="TOP"
><SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>none</I
></SPAN
></TD
></TR
></TBODY
></TABLE
><P
></P
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2966"
></A
><H2
>Description</H2
><P
>The <B
CLASS="COMMAND"
>alias</B
> command is used to maintain simple command
line aliases.  These aliases are shorthand for longer expressions.
When the pattern %{name} appears in a command line, including in a script,
the corresponding value will be substituted.  Aliases may be nested.
      </P
><P
>If no value is provided, then the current value of the alias is displayed.
      </P
><P
>If the system supports non-volatile configuration data via the
<B
CLASS="COMMAND"
>fconfig</B
> command (see <A
HREF="persistent-state-flash.html"
>the Section called <I
>Persistent State Flash-based Configuration and Control</I
> in Chapter 2</A
>),
then the value will be saved and used when the system is reset.
      </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN2974"
></A
><H2
>Examples</H2
><P
>Set an alias.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>
RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>alias joe "This is Joe"</B
></TT
>
Update RedBoot non-volatile configuration - continue (y/n)? n</PRE
></TD
></TR
></TABLE
> </P
><P
>Display an alias.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>
RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>alias joe</B
></TT
>
'joe' = 'This is Joe'</PRE
></TD
></TR
></TABLE
> </P
><P
>Use an alias.  Note: the <B
CLASS="COMMAND"
>"="</B
> command simply echoes the command to to console.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>
RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>= %{joe}</B
></TT
>
This is Joe</PRE
></TD
></TR
></TABLE
></P
><P
>Aliases can be nested.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>alias frank "Who are you? %{joe}"</B
></TT
>
Update RedBoot non-volatile configuration - continue (y/n)? n
RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>= %{frank}</B
></TT
>
Who are you? This is Joe</PRE
></TD
></TR
></TABLE
></P
><P
>Notice how the value of %{frank} changes when %{joe} is changed since
the value of %{joe} is not evaluated until %{frank} is evaluated.
<TABLE
BORDER="5"
BGCOLOR="#E0E0F0"
WIDTH="70%"
><TR
><TD
><PRE
CLASS="SCREEN"
>RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>alias joe "This is now Josephine"</B
></TT
>
Update RedBoot non-volatile configuration - continue (y/n)? n
RedBoot&#62; <TT
CLASS="USERINPUT"
><B
>= %{frank}</B
></TT
>
Who are you? This is now Josephine</PRE
></TD
></TR
></TABLE
>
      </P
></DIV
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><HR
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Line No.	Rev	Author	Line
1	28	unneback	`<!-- Copyright (C) 2003 Red Hat, Inc. -->`
2			`<!-- This material may be distributed only subject to the terms -->`
3			`<!-- and conditions set forth in the Open Publication License, v1.0 -->`
4			`<!-- or later (the latest version is presently available at -->`
5			`<!-- http://www.opencontent.org/openpub/). -->`
6			`<!-- Distribution of the work or derivative of the work in any -->`
7			`<!-- standard (paper) book form is prohibited unless prior -->`
8			`<!-- permission is obtained from the copyright holder. -->`
9			`<HTML`
10			`><HEAD`
11			`><TITLE`
12			`>alias</TITLE`
13			`><meta name="MSSmartTagsPreventParsing" content="TRUE">`
14			`<META`
15			`NAME="GENERATOR"`
16			`CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+`
17			`"><LINK`
18			`REL="HOME"`
19			`TITLE="eCos Reference Manual"`
20			`HREF="ecos-ref.html"><LINK`
21			`REL="UP"`
22			`TITLE="Common Commands"`
23			`HREF="common-commands.html"><LINK`
24			`REL="PREVIOUS"`
25			`TITLE="Common Commands"`
26			`HREF="common-commands.html"><LINK`
27			`REL="NEXT"`
28			`TITLE="baudrate"`
29			`HREF="baudrate-command.html"></HEAD`
30			`><BODY`
31			`CLASS="REFENTRY"`
32			`BGCOLOR="#FFFFFF"`
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40			`SUMMARY="Header navigation table"`
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44			`CELLSPACING="0"`
45			`><TR`
46			`><TH`
47			`COLSPAN="3"`
48			`ALIGN="center"`
49			`>eCos Reference Manual</TH`
50			`></TR`
51			`><TR`
52			`><TD`
53			`WIDTH="10%"`
54			`ALIGN="left"`
55			`VALIGN="bottom"`
56			`><A`
57			`HREF="common-commands.html"`
58			`ACCESSKEY="P"`
59			`>Prev</A`
60			`></TD`
61			`><TD`
62			`WIDTH="80%"`
63			`ALIGN="center"`
64			`VALIGN="bottom"`
65			`></TD`
66			`><TD`
67			`WIDTH="10%"`
68			`ALIGN="right"`
69			`VALIGN="bottom"`
70			`><A`
71			`HREF="baudrate-command.html"`
72			`ACCESSKEY="N"`
73			`>Next</A`
74			`></TD`
75			`></TR`
76			`></TABLE`
77			`><HR`
78			`ALIGN="LEFT"`
79			`WIDTH="100%"></DIV`
80			`><H1`
81			`><A`
82			`NAME="ALIAS-COMMAND">alias</H1`
83			`><DIV`
84			`CLASS="REFNAMEDIV"`
85			`><A`
86			`NAME="AEN2927"`
87			`></A`
88			`><H2`
89			`>Name</H2`
90			`>alias -- Manipulate command line aliases</DIV`
91			`><DIV`
92			`CLASS="REFSYNOPSISDIV"`
93			`><A`
94			`NAME="AEN2930"><H2`
95			`>Synopsis</H2`
96			`><P`
97			`><B`
98			`CLASS="COMMAND"`
99			`>alias</B`
100			`> {<TT`
101			`CLASS="REPLACEABLE"`
102			`><I`
103			`> name</I`
104			`></TT`
105			`>} [<TT`
106			`CLASS="REPLACEABLE"`
107			`><I`
108			`> value</I`
109			`></TT`
110			`>]</P`
111			`></DIV`
112			`><DIV`
113			`CLASS="REFSECT1"`
114			`><A`
115			`NAME="AEN2937"`
116			`></A`
117			`><H2`
118			`>Arguments</H2`
119			`><DIV`
120			`CLASS="INFORMALTABLE"`
121			`><A`
122			`NAME="AEN2939"><P`
123			`></P`
124			`><TABLE`
125			`BORDER="1"`
126			`CLASS="CALSTABLE"`
127			`><THEAD`
128			`><TR`
129			`><TH`
130			`WIDTH="25%"`
131			`ALIGN="LEFT"`
132			`VALIGN="TOP"`
133			`>Name</TH`
134			`><TH`
135			`WIDTH="25%"`
136			`ALIGN="LEFT"`
137			`VALIGN="TOP"`
138			`>Type</TH`
139			`><TH`
140			`WIDTH="25%"`
141			`ALIGN="LEFT"`
142			`VALIGN="TOP"`
143			`>Description</TH`
144			`><TH`
145			`WIDTH="25%"`
146			`ALIGN="LEFT"`
147			`VALIGN="TOP"`
148			`>Default</TH`
149			`></TR`
150			`></THEAD`
151			`><TBODY`
152			`><TR`
153			`><TD`
154			`WIDTH="25%"`
155			`ALIGN="LEFT"`
156			`VALIGN="TOP"`
157			`><TT`
158			`CLASS="REPLACEABLE"`
159			`><I`
160			`>name</I`
161			`></TT`
162			`></TD`
163			`><TD`
164			`WIDTH="25%"`
165			`ALIGN="LEFT"`
166			`VALIGN="TOP"`
167			`>Name</TD`
168			`><TD`
169			`WIDTH="25%"`
170			`ALIGN="LEFT"`
171			`VALIGN="TOP"`
172			`>The name for this alias.</TD`
173			`><TD`
174			`WIDTH="25%"`
175			`ALIGN="LEFT"`
176			`VALIGN="TOP"`
177			`><SPAN`
178			`CLASS="emphasis"`
179			`><I`
180			`CLASS="EMPHASIS"`
181			`>none</I`
182			`></SPAN`
183			`></TD`
184			`></TR`
185			`><TR`
186			`><TD`
187			`WIDTH="25%"`
188			`ALIGN="LEFT"`
189			`VALIGN="TOP"`
190			`><TT`
191			`CLASS="REPLACEABLE"`
192			`><I`
193			`>value</I`
194			`></TT`
195			`></TD`
196			`><TD`
197			`WIDTH="25%"`
198			`ALIGN="LEFT"`
199			`VALIGN="TOP"`
200			`>String</TD`
201			`><TD`
202			`WIDTH="25%"`
203			`ALIGN="LEFT"`
204			`VALIGN="TOP"`
205			`>Replacement value for the alias.</TD`
206			`><TD`
207			`WIDTH="25%"`
208			`ALIGN="LEFT"`
209			`VALIGN="TOP"`
210			`><SPAN`
211			`CLASS="emphasis"`
212			`><I`
213			`CLASS="EMPHASIS"`
214			`>none</I`
215			`></SPAN`
216			`></TD`
217			`></TR`
218			`></TBODY`
219			`></TABLE`
220			`><P`
221			`></P`
222			`></DIV`
223			`></DIV`
224			`><DIV`
225			`CLASS="REFSECT1"`
226			`><A`
227			`NAME="AEN2966"`
228			`></A`
229			`><H2`
230			`>Description</H2`
231			`><P`
232			`>The <B`
233			`CLASS="COMMAND"`
234			`>alias</B`
235			`> command is used to maintain simple command`
236			`line aliases. These aliases are shorthand for longer expressions.`
237			`When the pattern %{name} appears in a command line, including in a script,`
238			`the corresponding value will be substituted. Aliases may be nested.`
239			`</P`
240			`><P`
241			`>If no value is provided, then the current value of the alias is displayed.`
242			`</P`
243			`><P`
244			`>If the system supports non-volatile configuration data via the`
245			`<B`
246			`CLASS="COMMAND"`
247			`>fconfig</B`
248			`> command (see <A`
249			`HREF="persistent-state-flash.html"`
250			`>the Section called <I`
251			`>Persistent State Flash-based Configuration and Control</I`
252			`> in Chapter 2</A`
253			`>),`
254			`then the value will be saved and used when the system is reset.`
255			`</P`
256			`></DIV`
257			`><DIV`
258			`CLASS="REFSECT1"`
259			`><A`
260			`NAME="AEN2974"`
261			`></A`
262			`><H2`
263			`>Examples</H2`
264			`><P`
265			`>Set an alias.`
266			`<TABLE`
267			`BORDER="5"`
268			`BGCOLOR="#E0E0F0"`
269			`WIDTH="70%"`
270			`><TR`
271			`><TD`
272			`><PRE`
273			`CLASS="SCREEN"`
274			`>`
275			`RedBoot> <TT`
276			`CLASS="USERINPUT"`
277			`><B`
278			`>alias joe "This is Joe"</B`
279			`></TT`
280			`>`
281			`Update RedBoot non-volatile configuration - continue (y/n)? n</PRE`
282			`></TD`
283			`></TR`
284			`></TABLE`
285			`> </P`
286			`><P`
287			`>Display an alias.`
288			`<TABLE`
289			`BORDER="5"`
290			`BGCOLOR="#E0E0F0"`
291			`WIDTH="70%"`
292			`><TR`
293			`><TD`
294			`><PRE`
295			`CLASS="SCREEN"`
296			`>`
297			`RedBoot> <TT`
298			`CLASS="USERINPUT"`
299			`><B`
300			`>alias joe</B`
301			`></TT`
302			`>`
303			`'joe' = 'This is Joe'</PRE`
304			`></TD`
305			`></TR`
306			`></TABLE`
307			`> </P`
308			`><P`
309			`>Use an alias. Note: the <B`
310			`CLASS="COMMAND"`
311			`>"="</B`
312			`> command simply echoes the command to to console.`
313			`<TABLE`
314			`BORDER="5"`
315			`BGCOLOR="#E0E0F0"`
316			`WIDTH="70%"`
317			`><TR`
318			`><TD`
319			`><PRE`
320			`CLASS="SCREEN"`
321			`>`
322			`RedBoot> <TT`
323			`CLASS="USERINPUT"`
324			`><B`
325			`>= %{joe}</B`
326			`></TT`
327			`>`
328			`This is Joe</PRE`
329			`></TD`
330			`></TR`
331			`></TABLE`
332			`></P`
333			`><P`
334			`>Aliases can be nested.`
335			`<TABLE`
336			`BORDER="5"`
337			`BGCOLOR="#E0E0F0"`
338			`WIDTH="70%"`
339			`><TR`
340			`><TD`
341			`><PRE`
342			`CLASS="SCREEN"`
343			`>RedBoot> <TT`
344			`CLASS="USERINPUT"`
345			`><B`
346			`>alias frank "Who are you? %{joe}"</B`
347			`></TT`
348			`>`
349			`Update RedBoot non-volatile configuration - continue (y/n)? n`
350			`RedBoot> <TT`
351			`CLASS="USERINPUT"`
352			`><B`
353			`>= %{frank}</B`
354			`></TT`
355			`>`
356			`Who are you? This is Joe</PRE`
357			`></TD`
358			`></TR`
359			`></TABLE`
360			`></P`
361			`><P`
362			`>Notice how the value of %{frank} changes when %{joe} is changed since`
363			`the value of %{joe} is not evaluated until %{frank} is evaluated.`
364			`<TABLE`
365			`BORDER="5"`
366			`BGCOLOR="#E0E0F0"`
367			`WIDTH="70%"`
368			`><TR`
369			`><TD`
370			`><PRE`
371			`CLASS="SCREEN"`
372			`>RedBoot> <TT`
373			`CLASS="USERINPUT"`
374			`><B`
375			`>alias joe "This is now Josephine"</B`
376			`></TT`
377			`>`
378			`Update RedBoot non-volatile configuration - continue (y/n)? n`
379			`RedBoot> <TT`
380			`CLASS="USERINPUT"`
381			`><B`
382			`>= %{frank}</B`
383			`></TT`
384			`>`
385			`Who are you? This is now Josephine</PRE`
386			`></TD`
387			`></TR`
388			`></TABLE`
389			`>`
390			`</P`
391			`></DIV`
392			`><DIV`
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407			`><A`
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409			`ACCESSKEY="P"`
410			`>Prev</A`
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442			`HREF="common-commands.html"`
443			`ACCESSKEY="U"`
444			`>Up</A`
445			`></TD`
446			`><TD`
447			`WIDTH="33%"`
448			`ALIGN="right"`
449			`VALIGN="top"`
450			`>baudrate</TD`
451			`></TR`
452			`></TABLE`
453			`></DIV`
454			`></BODY`
455			`></HTML`
456			`>`

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