file-rename --version (return code: 0)
/usr/bin/file-rename using File::Rename version 0.20
file-rename --help (return code: 1)
Usage: rename [ -h|-m|-V ] [ -v ] [ -n ] [ -f ] [ -e|-E *perlexpr*]*|*perlexpr* [ *files* ] Options: -v, -verbose Verbose: print names of files successfully renamed. -n, -nono No action: print names of files to be renamed, but don't rename. -f, -force Over write: allow existing files to be over-written. -h, -help Help: print SYNOPSIS and OPTIONS. -m, -man Manual: print manual page. -V, -version Version: show version number. -e Expression: code to act on files name. May be repeated to build up code (like "perl -e"). If no -e, the first argument is used as code. -E Statement: code to act on files name, as -e but terminated by ';'.