This is not a direct answer to your question, but I'd like to suggest that you take a look at the CPAN modules Getopt::Long and Pod::Usage. These can help you with parameter processing and good documentation for your scripts, like the following example using the params you stated: 
#!/usr/bin/perl

use Getopt::Long;
use Pod::Usage;

# Parameters
our $foo = '';
our $redirect = '';
our $nooutput = '';
INIT {
    
    my $help = '';
    GetOptions(
        'help|?'    => \$help,
        'foo=s'        => \$foo,
        'redirect'    => \$redirect,
        'nooutput'    => \$nooutput,
    ) or pod2usage(2);
    pod2usage(-exitstatus => 0, -verbose => 2) if $help;
}

print "Hello World\n";

print "Files are " . join(',', @ARGV) . "\n";

1;

__END__

=head1 NAME

yourscript.pl - This is what I DO

=head1 SYNOPSIS

./yourscript.pl

=head1 DESCRIPTION

I'm a description.

--foo  I take a string

--redirect  I'm a trigger

--nooutput  I'm a trigger too

--help  This help text

=head1 AUTHOR

Written by you

[download]

In reply to Re: Parsing @ARGV w/ Map Function by wind
in thread Parsing @ARGV w/ Map Function by HalNineThousand

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