


OpenBSD::Getopt(3Perl Programmers Reference GuOpenBSD::Getopt(3p)


NAME
       OpenBSD::Getopt - Process single-characters switches

SYNOPSIS
          use OpenBSD::Getopt;

          our($opt_o, $opt_i, $opt_f, $opt_v);
          getopts('oifv:',
               { 'v' => sub {
                       ++$opt_v;}
               }

DESCRIPTION
       This is similar to getopt(3). One call to
       "getopts($optstring)" parses all the options using the
       $optstring as a list of simple switches (letter) and
       switches with arguments (letter followed by ":").

       Option values are directly written into local variables of
       the form $opt_S, where "S" is the switch name.

       Contrary to getopt(3), $opt_S is incremented each time the
       switch is seen, to allow for stuff like "-vv".

       An optional hash can be used as a second argument, with
       switches as keys and subs as values. When a switch is met,
       the sub $foo is called as $foo for a simple switch and as
       "$foo(option_value)" for a switch with argument.





























perl v5.10.1                2009-12-17                          1


