gperl --version (return code: 0)
`gperl' version 1.2.6
gperl --help (return code: 0)
Usage for the `gperl' program:
gperl [-] [--] [filespec...] normal file name arguments
gperl [-h|--help] gives usage information
gperl [-v|--version] displays the version number
This program is a `groff' preprocessor that handles Perl parts in `roff' files.