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






  1. Perl
  2. Language Basics
  3. 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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