For a text string value, use :s for an optional value or =s for a required value: : Getopt « System Functions « Perl

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Perl » System Functions » Getopt

For a text string value, use :s for an optional value or =s for a required value:


      



#Getopt::Long::GetOptions('header=s' => \$header_string);



#!/usr/bin/perl -w



use Getopt::Long;



Getopt::Long::GetOptions( 

    'header=s'        => \$header_string);



if ( defined( $header_string ) ) {

    print "header flag set to $header_string\n";

}

Related examples in the same category

1.	Simple options
2.	GetOptions("file=s" => \$file);
3.	Generate random passwords?
4.	Extract command-line switches with Getopt::Std
5.	Perform consistent command line parsing
6.	Process complex command lines
7.	Read from a file
8.	To turn a feature on or off. Use the exclamation point(!)
9.	Using Getopt to deal with command line options
10.	getopt('pMN');
11.	If the value is optional, use a colon
12.	Check if a file exists
13.	A double dash (--) by itself signals the end of the command-line switches.

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