- cd - Change Directory. (Just like in dos)
- mkdir - Make Directory.
- rmdir - Removes a Directory that is empty!
- ls - List directory. (Like dir in Windows)
- cat – Short for concatenate. It was used to concatenate two filestogether via cat file1 file2 >file3 Didn‘t know that did you. Theechoing out to standard out gave cat a whole new meaning to the users.
- more - Just like less. It pages output to the screen.
- mv - Move. For moving files and directories around
- rm Remove a file. Also rm rf for removing a folder and it‘scontent.
- grep - Used to search for text within a stream or files. (man regex)
- vi – A text based editor. You‘ll find that it‘s really a symboliclink to vim now a days.
- rlogin - Remote login. I hope your admins disabled this!
- passwd - Used to change your password.
- ps - Used to processes.
- nice - Run a program with lower priority so you don't hog CPU.
- kill – Terminates a program. You can select what signal you want tokill a program with also. -9
- gzip - Compresses files.
- gunzip - Uncompresses files.
- tee – Pipe your output to standard out and to a file. Nice forwatching a process and logging.
- sort - A sort program
- sed – Stream Editor. Excellent program to modify files or streams!(man regex)
- uniq - Unique program.
- awk – An excellent program to parse up streams or files into tokens.It supports a hellva lot of cool things and you can complete writeprograms with it. (man nawk also)
- chgrp - Change Group
- chown - Change owner
- pwd - Current working directory.
- find – Used to find programs and you can also execute commands oneach match found.
- wc - Word, line, letter count program. For you line counting whores.
- which - Finds a location of a program that's in your path.
- last - See who last logged in.
- du - Disk usage.
- df - Disk Free
- top – Running processes with CPU and other information thatrefreshes.
- watch – Repeats a command and updates the screen with only thechanges
- login - Logging in
- telnet - Connect to another machine
- logout - Logging out
- emacs - Using the emacs text editor
- cp - Making a copy of a file
- chmod - Controlling access to your files
- cmp - Comparing two files
- compress - Compress a file
- pine Using Pine to send and receive email
- mush - The mush electronic mail system
- talk - Talk to another user
- write - Write messages to another user
- ftp - Transferring files with ftp
- man - Manual pages
- quota v Finding out your available disk space quota
- ical - Using the Ical personal organizer
- finger - Getting information about a user
- who - Finding out who's logged on
- lpr - Printing
- lprm - Removing a print job
- lpq - Checking the print queues
- ps - Finding your processes
- kill - Killing a process
- nohup - Continuing a job after logout
- nice - Changing the priority of a job
- & - What is a background process?
- Cntrl-z - Suspending a process
- fg - Resuming a suspended process
Tuesday, July 26, 2005
Common UNIX Commands
I just decied to look for a few commonly used UNIX command. A quick Google produces a lot more, but here are a list of more useful commands.
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