Conditional debug : Command Line « Language Basics « Perl

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Perl » Language Basics » Command Line

Conditional debug


     



#!/usr/bin/perl

use strict;

use warnings;

use subs qw(debug);



unless (defined &debug) {

    if ($ENV{DEBUG_ENABLED}) {

        *debug = sub { print STDERR "@_\n" };

    } else {

        *debug = sub { }; #stub

    }

}



debug "In debug mode";

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