Unix Station: Commands

Unix Command Summary
(click on command name for demo)
Command	Purpose
Informational
date	displays current date and time
history	displays previous commands you made
uname	displays system name
env	shows your environment settings
who	displays who is on the system
cal	displays calendar
clear	sets your Unix window with the prompt at the top and blank space below
bc	basic calculator (Control/D) to stop
quota	display your quota and usage
man	displays Unix manual page on command
whatis	displays short definition of command
Files and Directories
mkdir	make directory
cd	change directory
pwd	display present working directory
ls	list files in pwd
cat	display file contents
more	display file screenful at time
diff	compare file contents
touch	touch a file; create it if it doesn't exist
cp	copy file
mv	move file
rm	remove (delete) file
rmdir	remove (delete) directory
chmod	change access permissions
Text
vi	visual editor
spell	spell checker
ispell	interactive spell checker
wc	word, line, character count
Text Filtering
echo	echo input
grep	search for pattern in file
egrep	search for pattern in file using regular expressions
sort	display sorted content
sed	stream editor
awk	pattern scanning and processing language
Communication
mail	mail session
ftp	file transfer protocol
telnet	telnet to computer host
passwd	change your password