Hi, This is what i did for a similar case: 
use strict;
use warnings;

use ExtUtils::Installed;

#
# First, check if all the required modules have
# been installed inthe system this script will run on.
#
BEGIN {
    my @import_modules = (
        'Getopt::Lucid',
        'Apache::Htpasswd',
        'IO::CaptureOutput'
        );

    my ($inst) = ExtUtils::Installed->new();
    my (@installed_modules) = $inst->modules();

    for ( @import_modules ) {

        eval{ $inst->validate($_) };
        if($@) {
            print qq{\n
Module $_ does not seem to be installed in this system.
Please install the module and try again!\n
};
            exit 1;

        } # end 'if'

    } # end 'for'

} # end 'BEGIN' block

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In reply to Re: Check if module is installed by hecroce
in thread Check if module is installed by DreamT

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