#!/usr/bin/perl -w
use strict;
use Getopt::Std;
my $width = 500;
my $height = 500;
getopts( 'w:h:' );
if( $opt_w ) { $width = $opt_w ; }
if( $opt_h ) { $height = $opt_h ; }
print "$height:$width\n";
####
Global symbol "$opt_w" requires explicit package name at ./adjust.pl line 14.
####
#!/usr/bin/perl -w
use strict;
use Getopt::Std;
my $width = 500;
my $height = 500;
my $opt_w;
my $opt_h;
getopts( 'w:h:' );
if( $opt_w ) { $width = $opt_w ; }
if( $opt_h ) { $height = $opt_h ; }
print "$width:$height\n";
####
$ ./my.pl -w 1000 -h 9
####
500:500