OpenBSD::Getopt(3p) Perl Programmers Reference Guide OpenBSD::Getopt(3p)NAMEOpenBSD::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 v5.12.2 June 30, 2010
