Network Policies and Procedures

Auburn University College of Engineering
Network Services

9. UNIX Quick Reference

This quick reference lists commands, including a syntax diagram and brief description. Arguments inside the brackets ([..]) indicate an optional part of the command. For more detail, click on the command.

9.1 File Manipulation

List files in current directory-->	ls -[l]
List hidden files-->	ls -[l]a
Display file contents-->	cat filename
Page through file-->	more filename
Copy-->	cp source destination
Move or Rename-->	mv oldname newname
Remove (delete)-->	rm filename
Create or modify file-->	pico filename
Search with grep filter-->	grep pattern filename

9.2. File Properties

Changing permission----->	chmod nnn filename
----->	chmod c=p[,c=p...] filename

where n is a digit from 0 to 7 which sets the access level for the user(owner), group, and others(public), respectively. c is one of: u for user, g for group, o for other, or a for all. p is one of: r for read access, w for write access, or x for execute access.

9.3 Directories

Change Directory ---->	cd directory_name
Make new Directory ---->	mkdir directory_name
Remove directory ---->	rmdir directory
Print working(current) directory ---->	pwd

9.4 Job Control

Run command in the background ----->	command &
Stop foreground job ----->	CTRL-Z
List of background jobs ----->	jobs
Bring job forward ----->	%n
Resume job in background ----->	%n &

9.5 Processes

Listing
BSD ----> SYSV ---->	ps -[aux] ps -[elf]
Terminating	kill -[HUP] PID

9.6 Managing Disk Space

Disk usage of file system ---->	df
Disk usage of individual from current directory ---->	du -s
Disk usage of files from current directory ---->	ls -l

9.7 Printing

Printing a file from a cmd shell ---->	lpr -Pprintername filename
Checking the printer queue ---->	lpq -Pprintername

9.8 Miscellaneous Commands

List commands for subject ----->	man -k subject
Display documentation ----->	man command
Log out ----->	exit
Log out ----->	logout