UNIX Command Reference

Command:

A
admin	create and administer SCCS history files
alias	create or remove a pseudonym or shorthand for a command or series of commands
ar	maintain portable archive or library
asa	convert FORTRAN carriage-control output to printable form
at	execute commands at a later time
awk	pattern scanning and processing language
B
basename	deliver portions of path names
batch	execute commands at a later time
bc	arbitrary precision arithmetic language
bg	control process execution
C
cal	display a calendar
calendar	reminder service
cancel	cancel print request
cat	concatenate and display files
cc	c compiler
cd	change working directory
chgrp	change file group ownership
chmod	change the permissions mode of a file
chown	change file ownership
cksum	write file checksums and sizes
cmp	compare two files
col	reverse line-feeds filter
comm	select or reject lines common to two files
command	execute a simple command
compress	compress, uncompress files or display expanded files
cp	copy files
cpio	copy file archives in and out
crontab	user crontab file
csplit	split files based on context
ctags	generate tag file for Emacs, vi
cu	call another UNIX system
cut	cut out selected fields of each line of a file
D
date	write the date and time
dd	convert and copy a file
delta	make a delta to an SCCS file
df	displays number of free disk blocks and files
diff	display line-by-line differences between pairs of text files
dircmp	directory comparison
dirname	deliver portions of path names
dis	object code disassembler
du	summarize disk usage