my @options = (
  -d => '/home/users', # you can add
  -s => '/bin/sh',     # add inline
  -g => 100,           # comments as well
  '-m',                # boolean switch
);

# instead of
my %options = (
  -d => '/home/users', # isn't it nice to be able
  -s => '/bin/sh',     # to put comments for esoteric
  -g => 100,           # external program swithces?
  -m => '',            # boolean switch
);