I ain't no expert but I find Getopt::Std pretty easy to use.
Nothing fancy here ... but it works. I am sure you can tweek it
to suit your purposes.

#!/usr/bin/perl -w
use strict;
use Getopt::Std;

use vars qw/ $opt_i $opt_o $opt_n $opt_s $opt_h /;
my $inputFile;
my $outFile     = "Default.out";
my $n        = 123;
my $s;

getopts( 'i:o:n:s:h' );

if( $opt_i ) { 
    $inputFile = $opt_i;
    &usage( "Input File $inputFile does not exist" ) 
                 unless ( -T $inputFile );
} else {
    &usage( "Must specify output file with -i<filename>" );
}
if( $opt_o ) { $outFile = $opt_o; }
if( $opt_n ) { $n     = $opt_n; }
if( $opt_s ) { 
    $s    = $opt_s;
} else {
    &usage( "Must specify s number with -s <number>" );
}
if( $opt_o ) { $outFile = $opt_o; }
if( $opt_h ) { &usage(); exit; }

print "Input file is $inputFile\n";
print "Output file is $outFile\n";
print "n is $n\n";
print "s is $s\n";


sub usage {
    my $msg = shift;

print <<USAGE;
usage error [$msg]
usage: $0 -i<input file> -s<number> -o[<output file>] -n[<number>]
USAGE
exit;
}

[download]

In reply to Re: Using GetOpt::Std to parse switches with arguments by rbc
in thread Using GetOpt::Std to parse switches with arguments by EyeOpener

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