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\section else else - execute command if a condition is not met
\subsection else-synopsis Synopsis
<tt>if CONDITION; COMMANDS_TRUE...; [else; COMMANDS_FALSE...;] end</tt>
\subsection else-description Description
<tt>if</tt> will execute the command \c CONDITION. If the condition's exit
status is 0, the commands \c COMMANDS_TRUE will execute. If it is not 0 and
<tt>else</tt> is given, \c COMMANDS_FALSE will be executed.
\subsection else-example Example
The following code tests whether a file \c foo.txt exists as a regular file.
<pre>
if test -f foo.txt
echo foo.txt exists
else
echo foo.txt does not exist
end
</pre>
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