UNIX Command Reference

Command:

R
read	Read from a channel
renice	alter priority of running processes
rm	remove directory entries
rmdel	remove a delta from an SCCS file
rmdir	remove directory entries
S
sact	show editing activity status of an SCCS file
sccs	front end for the Source Code Control System (SCCS)
sed	stream editor
sh	standard and job control shell and command interpreter
sleep	suspend execution for an interval
sort	sort, merge, or sequence check text files
spell	report spelling errors
split	split a string into a proper Tcl list
strings	find printable strings in an object or binary file
strip	strip symbol table, debugging and line number information from an object file
stty	set the options for a terminal
sum	print checksum and block count for a file
T
tabs	set tabs on a terminal
tail	deliver the last part of a file
talk	talk to another user
tar	create tape archives and add or extract files
tee	replicate the standard output
telnet	user interface to a remote system using the TELNET protocol
test	evaluate condition(s) or make execution of actions dependent upon the evaluation of condition(s)
time	time the execution of a script
touch	change file access and modification times
tput	initialize a terminal or query terminfo database
tr	translate characters
true	provide truth values
tsort	topological sort
tty	return user's terminal name
type	write a description of command type
U
ulimit	set or get limitations on the system resources available to the current shell and its descendents
umask	get or set the file mode creation mask
unalias	create or remove a pseudonym or shorthand for a command or series of commands
uname	print name of current system
uncompress	compress, uncompress files or display expanded files
unexpand	expand TAB characters to SPACE characters, and vice versa
unget	undo a previous get of an SCCS file
uniq	report or filter out repeated lines in a file
unlink	link and unlink files and directories
unpack	compress and expand files
uucp	UNIX-to-UNIX system copy
uudecode	encode a binary file, or decode its encoded representation
uuencode	encode a binary file, or decode its encoded representation
uulog	UNIX-to-UNIX system copy
uuname	UNIX-to-UNIX system copy
uupick	public UNIX-to-UNIX system file copy
uustat	uucp status inquiry and job control
uuto	public UNIX-to-UNIX system file copy
uux	UNIX-to-UNIX system command execution
V
val	validate an SCCS file
vi	screen-oriented (visual) display editor based on ex
W
wait	await process completion
wc	display a count of lines, words and characters in a file
what	extract SCCS version information from a file
who	who is on the system
write	write to another user
X
xargs	construct argument lists and invoke utility
Y
yacc	yet another compiler-compiler
Z
zcat	compress or expand files