Sleep sort (from http://dis.4chan.org/read/prog/1295544154)

sleepsort.sh

#!/bin/bash
function f()
{
  sleep "$1"
  echo "$1"
}
while [ -n "$1" ]
do
  f "$1" &
  shif
done
wait


example usage: ./sleepsort.bash 5 3 6 3 6 3 1 4 7