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\section test test - perform tests on files and text
\subsection test-synopsis Synopsis
<tt>test [EXPRESSION]</tt>
\subsection test-description Description
Tests the expression given and returns true or false.
- \c -h, \c Display this help
- \c -G, \c File owned by effective group ID
- \c -L, \c File is symlink
- \c -O, \c File owned by effective user ID
- \c -S, \c File is socket
- \c -a, \c Logical and
- \c -b, \c File is block device
- \c -c, \c File is character device
- \c -d, \c File is a directory
- \c -e, \c File exists
- \c -f, \c File is regular
- \c -f, \c File is set-group-ID
- \c -k, \c File has sticky bit set
- \c -n, \c String length is non-zero
- \c -o, \c Logical or
- \c -p, \c File is named pipe
- \c -r, \c File is readable
- \c -s, \c File size is non-zero
- \c -t, \c FD is terminal
- \c -u, \c File set-user-ID bit is set
- \c -w, \c File is writable
- \c -x, \c File is executable
- \c -z, \c String length is zero
\subsection test-example Example
<pre>
if test -d "/"
echo "Fish is cool"
end
</pre>
Because "/" is a directory the expression will evaluate
to true, and "Fish is cool" will be echoed
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