#! /bin/bash

# run as su
# Read from userpass.15.dat to add the listed users with predefined password via adduser for a Rocks clusters.

for i in $(cat userpass.15.dat | awk '{print $2 , $3}')
do
#echo $i

ti=$(echo "${i}" | cut -c1-1)
re='^[0-9]+$'
if ! [[ $ti =~ $re ]] ; then
   j=$(( $j + 1 ))
   username[$j]=$i
#   echo $j 'username[$j]=' ${username[$j]} 
fi

if [[ $ti =~ $re ]] ; then
  passwd[$j]=$i
#  echo $j 'passwd[$j]=' ${passwd[$j]}
fi
done

last=$(cat userpass.15.dat | awk 'END {print NR}')

for (( i=1; i<=$last; i++ ))
do
echo  ' ' 
echo  $i
passwd=${passwd[$i]}
username=${username[$i]} 
adduser -m $username
echo $username $passwd
passwd $username
usermod -g users $username
echo  ' ' 
done