shift: defaults to shifting @ARGV : Special Variables « Language Basics « Perl

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Perl » Language Basics » Special Variables

shift: defaults to shifting @ARGV


   



#!/usr/bin/perl -w



use strict;



sub version {

    print "version\n";

}



my $option = shift;    # defaults to shifting @ARGV



version() if $option eq "-v" or $option eq "--version";



print "Hello, world.\n";

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