#!/bin/sh
# A shell script to sort passwd(5)-format files by uid. 

if [ "z$1" = "z-help" ]; then
   prog="`basename $0`"
   echo "Usage: ${prog} {passwd-file} {-o ouput_file}"
   echo "       (stdin/stdout by default)"
   echo ""
   exit 1
fi

exec sort -s -t: +2n -3 "$@"

# eof