#!/bin/sh
#
# addpoolusers - create pool of users for gridmapdir mechanism and 
#                populate gridmapdir
#
# http://www.hep.grid.ac.uk/gridmapdir/
#
# Andrew McNab <mcnab@hep.man.ac.uk>  March 2001
#

startUID=2000		# start UID of first user
  endUID=2005		# UID of last user - no more than startUID+999
   group=users		# group to assign all pool users to
  prefix=gpool		# prefix, eg gpool000, gpool001, ...
homedirs=/home/gpool	# where to make the home directories

########## You dont need to edit anything below this line    #########
########## but you should make sure you understand it before #########
########## running this script on your system !!!!!!!!!!!!!! #########

counter=0

while [ $startUID -le $endUID ]
do
 username="$prefix`printf '%03d' $counter`"
 #   ie 0-999 pool users   ^^^^
 homedir="$homedirs/$username"

 if [ -d $homedir ] ; then
  echo $homedir exists already. Skiping $username
 else
  /usr/sbin/useradd -g $group -n -M -u $startUID -d $homedir $username
  mkdir $homedir
  chown $username.$group $homedir
  chmod 0700 $homedir
  echo Created user $username, UID=$startUID
 fi

 if   [ ! -d /etc/grid-security/gridmapdir ] ; then
  : # no gridmapdir on this machine
 elif [ -f /etc/grid-security/gridmapdir/$username ] ; then
  echo $username already listed in /etc/grid-security/gridmapdir
 else
  touch /etc/grid-security/gridmapdir/$username
  echo $username added to /etc/grid-security/gridmapdir
 fi

 echo

 counter=`expr $counter + 1`
 startUID=`expr $startUID + 1`
done