st operators. It's by no means comprehensive, but its likely to be all you'll need to remember (if you ... regular file.
-g file
True if file exists and its set-group-id bit is set.
-h file
True if file ... symbolic link.
-k file
True if file exists and its "sticky" bit is set.
-p file
True if file exis... to a terminal.
-u file
True if file exists and its set-user-id bit is set.
-w file
True if file e
