#! /bin/sh
#
# Script to unlock accounts of those having ids in file given as command-line
# parameter.  Each line of the file must begin with a user id for an account
# to be unlocked.

if [ `whoami` != "root" ]
then
   echo "Only root can run this script"
   exit 1
fi

if [ $# != 1 ]
then
   echo "Must have 1 argument: the name of the file of ids to be unlocked."
   exit 2
fi

while read line
do                       
   id=`echo $line | cut -d ' ' -f1`
   passwd -u "$id"
done < "$1"

exit 0