mirror of
https://github.com/fish-shell/fish-shell
synced 2024-12-29 14:23:09 +00:00
23 lines
659 B
Text
23 lines
659 B
Text
\section if if - Conditionally execute a command
|
|
|
|
\subsection if-synopsis Synopsis
|
|
<tt>if CONDITION; COMMAND_TRUE [else; COMMAND_FALSE] end;</tt>
|
|
|
|
\subsection if-description Description
|
|
<tt>if</tt> will execute the command CONDITION. If the commands exit
|
|
status is zero, the command COMMAND_TRUE will execute. If it is
|
|
not zero and COMMAND_FALSE is specified, COMMAND_FALSE will be
|
|
executed.
|
|
|
|
\subsection if-example Example
|
|
|
|
<pre>
|
|
if test -f foo.txt
|
|
echo foo.txt exists
|
|
else
|
|
echo foo.txt does not exist
|
|
end
|
|
</pre>
|
|
will print <tt>foo.txt exists</tt> if the file foo.txt
|
|
exists and is a regular file, otherwise it will print
|
|
<tt>foo.txt does not exist</tt>.
|