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 $opt_x (where x is the switch
name) to the value of the argument, or 1 if no argument.
Switches which take an argument don't care whether there
is a space between the switch and the argument.
Note that, if your code is running under the recommended
"use strict 'vars'" pragma, you will need to declare these
package variables with "our":
our($opt_foo, $opt_bar);
For those of you who don't like additional global vari
ables 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.
To allow programs to process arguments that look like
switches, but aren't, both functions will stop processing
switches when they see the argument "--". The "--" will
be removed from @ARGV.
2001-02-22 perl v5.6.1 Getopt::Std(3)
