#!/usr/bin/perl -w

# Usage:
#   copy1.pl infile outfile

$input = $ARGV[0];

$output = ">" . $ARGV[1];

open(INPUT, $input) or die "Can't open $input due to $!.";

open(OUTPUT, $output) or die "Can't open $output due to $!.";

# Use shorthand for reading file.
while ( <INPUT> ) {
    print OUTPUT $_;
} 

# Close the files when done.
close (INPUT);
close (OUTPUT);