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* pathnames.sgml: Clarify '@' processing.

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Christopher Faylor 2013-02-13 17:57:19 +00:00
parent 6cb2bb7166
commit 729c92aaa7
2 changed files with 9 additions and 5 deletions
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4
winsup/doc/ChangeLog
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@ -1,3 +1,7 @@
2013-02-13 Christopher Faylor <me.cygwin2013@cgf.cx>
* pathnames.sgml: Clarify '@' processing.
2013-01-23 Christopher Faylor <me.cygwin2012@cgf.cx>
* faq-programming.xml: Remove reference to "make check".

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winsup/doc/pathnames.sgml
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@ -987,19 +987,19 @@ If a registry key contains a subkey and a value with the same name
<sect2 id="pathnames-at"><title>The @pathnames</title>
<para>To circumvent the limitations on shell line length in the native
Windows command shells, Cygwin programs expand their arguments
Windows command shells, Cygwin programs, when invoked by non-Cygwin processes, expand their arguments
starting with "@" in a special way. If a file
<filename>pathname</filename> exists, the argument
<filename>@pathname</filename> expands recursively to the content of
<filename>pathname</filename>. Double quotes can be used inside the
file to delimit strings containing blank space.
In the following example compare the behaviors of the bash built-in
<command>echo</command> and of the program <command>/bin/echo</command>.</para>
In the following example compare the behaviors
<command>/bin/echo</command> when run from bash and from the Windows command prompt.</para>
<example id="pathnames-at-ex"><title> Using @pathname</title>
<screen>
<prompt>bash$</prompt> <userinput>echo 'This is "a long" line' > mylist</userinput>
<prompt>bash$</prompt> <userinput>echo @mylist</userinput>
<prompt>bash$</prompt> <userinput>@/bin/echo 'This is "a long" line' > mylist</userinput>
<prompt>bash$</prompt> <userinput>/bin/echo @mylist</userinput>
@mylist
<prompt>bash$</prompt> <userinput>cmd</userinput>
<prompt>c:\&gt;</prompt> <userinput>c:\cygwin\bin\echo @mylist</userinput>