#!/bin/bash
#passwd_line.sh
#Description: Illustration of IFS
line="root:x:0:0:root:/root:/bin/bash" 
oldIFS=$IFS; 
IFS=":" 
count=0; 
for item in $line; 
do 

[ $count -eq 0 ]  && user=$item; 
[ $count -eq 6 ]  && shell=$item; 
let count++ 
done; 
IFS=$oldIFS 
echo $user\'s shell is $shell;