#!/usr/bin/env perl
# Copyright 2005 Daniel Cer (daniel.cer@cs.colorado.edu)
#
# This work is licensed under the Creative Commons Attribution-NonCommercial-
# ShareAlike License. To view a copy of this license, visit 
# http://creativecommons.org/licenses/by-nc-sa/2.5/ or send a letter to 
# Creative Commons, 543 Howard Street, 5th Floor, San Francisco, California, 
# 94105, USA.

if ($#ARGV != 0) {
  print stderr "Usage:\n\t$0 (file with numbers to sort)\n";
  exit -1;
}

$file_name = $ARGV[0];

# read in the items
open fh, $file_name or die "Can't open $file_name\n"; @items = <fh>; close fh;

# sort them
@items = sort {$a <=> $b} @items;

# display the results
foreach $item (@items) { print "$item"; }