Getopt::Std(3) Perl Programmers Reference Guide Getopt::Std(3)NAME
getopt - Process single-character switches with switch
clustering
getopts - Process single-character switches with switch
clustering
SYNOPSIS
use Getopt::Std;
getopt('oDI'); # -o, -D & -I take arg. Sets opt_* as a side effect.
getopt('oDI', \%opts); # -o, -D & -I take arg. Values in %opts
getopts('oif:'); # -o & -i are boolean flags, -f takes an argument
# Sets opt_* as a side effect.
getopts('oif:', \%opts); # options as above. Values in %opts
DESCRIPTION
The getopt() functions processes single-character switches
with switch clustering. Pass one argument which is a
string containing all switches that take an argument. For
each switch found, sets $opt_x (where x is the switch
name) to the value of the argument, or 1 if no argument.
Switches which take an argument don't care whether there
is a space between the switch and the argument.
Note that, if your code is running under the recommended
use strict 'vars' pragma, it may be helpful to declare
these package variables via use vars perhaps something
like this:
use vars qw/ $opt_foo $opt_bar /;
For those of you who don't like additional variables being
created, getopt() and getopts() will also accept a hash
reference as an optional second argument. Hash keys will
be x (where x is the switch name) with key values the
value of the argument or 1 if no argument is specified.
16/Sep/1999 perl 5.005, patch 03 1
