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 |
----> ps -[aux] |
| SYSV |
----> 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 |
| |
----> logout |
