chickadee » getopt-long » usage

usage GRAMMARprocedure

Returns a string describing the options of GRAMMAR, one per line, with their docstrings:

 -k, --lockfile-dir=DIR   location of the lock file
 -v, --verbose            print more messages
 --level[=N]              level of detail

An option with an optional value shows it in brackets. The layout is controlled by three parameters: