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Common Linux Commands
Getting Help
man [command] - manual pages
apropos [keyword] - Searches the manual pages for the keyword
Note: Many of the following commands require switches. Use the manual pages to determine the proper switch
Directory Movement
pwd - current directory path
cd - change directory
File/Directory Viewing
ls - list
cat - display entire file
more - page through file
less - page forward and backward through file
head - view first ten lines of file
tail - view last ten lines of file
File/Directory Control
cp - copy
mv - move/rename
rm - remove
mkdir - make directory
rmdir - remove directory
ln - create pseudonym (link)
chmod - change permissions
touch - update access time (or create blank file)
Searching
locate - list files in filename database
find - recursive file search
grep - search file (also see "egrep" & "fgrep")
Text Editors
vim - Highly recommended by Peter, Aaron, and Jerome. A tutorial can be found here.
emacs - another text editor
nano - and another text editor
Compression
tar - tape archiver
gzip - GNU compression utility
bzip2 - compression and package utility
unzip - uncompress zip files
Session and Terminal
history - command history
script - produce session transcript
clear - clear screen
screen - multiple terminal environment
User Information
yppasswd - change user password
finger - display user(s) data, includes full name
who - display user(s) data
w - display user(s) current activity
System Usage
ps - show processes
kill - kill process
uptime - system usage & uptime
Misc.
ftp - simple File Transfer Protocol client
sftp - Secure File Transfer Protocol client
ssh - Secure Shell
ispell - interactively check spelling against system dictionary
date - display date and time
cal - display calendar
wget - web content retriever (mirror)
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