Linux/Unix - Interacting with a shell

Shell in Linux/Unix

I/O Redirection

Pipes

Filters

Valid and Invalid redirections

Background commands

Composing commands

Grouping Commands

Features of C shell

Exercise 3b

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

Summary

Command	Meaning
command > file	redirect standard output to a file
command >> file	append standard output to a file
command < file	redirect standard input from a file
command1 | command2	pipe the output of command1 to the input of command2
cat file1 file2 > file0	concatenate file1 and file2 to file0
sort	sort data
who	list users currently logged in

References

• http://www.ee.surrey.ac.uk/Teaching/Unix/unix3.html
• http://www.cis.rit.edu/class/simg211/