====== Answer 3.4 ======
 
===== 3.4 Using Pipes =====
 
==== Exercise 3b ====

Using pipes, display all lines of **list1** and **list2** containing the letter 'p', and sort the result.

 
==== Answer ====

<cli>ubuntu@ubuntu:~/unixsuff$ cat list1 list2 | grep p | sort</cli>