Shell Programming and Scripting

cat /etc/passwd | grep 1000

user:x:1000:1000:User Name,,,:/home/user:/bin/bash

myuser=$user
myhome=$homdir

awk -F":" '/1000/ {print $1, $6}' /etc/passwd

awk -F":" '$3=="1000" {print $1, $6}' /etc/passwd

cat /etc/passwd | grep 1000

grep 1000 /etc/passwd

read myuser myhome <<< $(awk -F":" '$3=="1000" {print $1, $6}' /etc/passwd)

 while IFS=":" read user _ userid _ _ homedir _; do [ $userid -eq 1000 ] && break; done < /etc/passwd

IFS=":" read user _ userid _ _ homedir _ <<< $(grep ".*:.*:1000:" /etc/passwd)

IFS=":" read myuser x x x x myhome x <<< "`getent passwd 1000`"

% cat passwd
root:x:0:0:Super-User:/:/bin/sh
user:x:1000:0:Super-User:/:/bin/sh
% IFS=":" read user _ userid _ _ homedir _ <<< $(grep ".*:.*:1000:" passwd); echo $user; echo $userid
user x 1000 0 Super-User / /bin/sh

% IFS=":" read user _ userid _ _ homedir _ <<< "$(grep ".*:.*:1000:" passwd)"; echo $user; echo $userid
user
1000
% echo $BASH_VERSION
3.2.57(1)-release
%