Cal = Calendar calendars, calender
Cat = CATenate connection, allowing continuous
cd = Change Directory
CHGRP = Change GRouP
chmod = Change MODe
Chown = Change OWNer
Chsh = Change SHell
CMP = Compare
Cobra = Common Object Request Broker Architecture
Comm = Common
CP = CoPy
Cpio = CoPy in and out
CPP = C Pre Processor
Cron = Chronos Greek time
Cups = Common Unix Printing System
CVS = current Version System
Daemon = Disk and execution MONitor the word should appear before the computer, it's very popular.
DC = Desk Calculator
DD = Disk Dump
DF = Disk Free
diff = Difference
DMESG = Diagnostic Message
Du = Disk Usage
ed = Editor
Egrep = Extended GREP
Elf = extensible linking Format
Elm = ELectronic Mail
Emacs = Editor MACroS
eval = EVALuate
ex = EXtended
exec = EXECute
FD = file descriptors
FG = ForeGround
Fgrep = Fixed GREP
Fish = the friendly Interactive SHell
File = files to see whether the type is binary, etc.
FMT = Format
fsck = File System ChecK
Fstab = FileSystem TABle
FVWM = f*** Virtual Window Manager
gawk = GNU AWK
GCC = general public Licence (GNU) compiler collection compiler generates binary a.out files
GPG = GNU Privacy Guard
grep = Global search Regular expression and print out line
Groff = GNU Troff
Hal = Hardware Abstraction Layer
Joe = Joe ' s Own Editor
Ksh = Korn SHell
Lame = lame Ain ' t an MP3 Encoder
Lex = LEXical Analyser
Lisp = LISt processing = Lots of irritating superfluous parentheses
ln = LiNk
LPR = line PRint
ls = List
lsof = LiSt Open Files
M4 = Macro Processor Version 4
make = Make
Man = MANual pages had been puzzled for some time before, being laughed at: see more men, less woman
Mawk = Mike Brennan s AWK
MC = Midnight Commander
MIME = Multipurpose Internet Mail Extensions
MKFS = Make FileSystem
Mknod = Make NODe
MOTD = Message of the day
Mozilla = MOsaic GodZILLa
mTAB = Mount TABle
MV = MoVe
Nano = Nano ' s another editor
Nawk = New AWK
NL = Number of Lines
NM = names
Nohup = No Hangup
Nroff = New ROFF
od = octal Dump
passwd = PASSWorD
pg = Pager
Pico = PIne ' s Message composition Editor
Pine = "program for Internet News & E-mail" = "Pine is not ELM"
ping = Packet InterNet Groper
Pirntcap = PRINTer CAPability
POPD = POP Directory
PR = Pre
printf = PRINT Formatted
PS = Processes Status
Pty = Pseudo TTY
pushd = PUSH Directory
PWD = Print working Directory
rc = runcom = Run command, RC or Plan9 shell
Rev = REVerse
RM = ReMove
RN = Read News
Roff = runoff
RPM = RPM Package Manager = RedHat Package Manager
Rsh, rlogin, r = Remote in Rvim
RXVT = Our XVT
Seamoneky = i
sed = Stream EDitor
Seq = SEQuence
Shar = SHell ARchive
SLRN = S-lang RN
SSH = Secure SHell
SSL = Secure Sockets Layer
Stty = Set TTY
Su = Substitute user or Switch user (the former is more common)
sudo = Superuser/substitue user do is more prone to superuser under Ubuntu because it represents root permissions
SVN = SubVersioN
tar = Tape ARchive
tcsh = Tenex C Shell
Tee = t (T-shaped water pipe interface)
telnet = teminal over Network
Termcap = terminal capability
Terminfo = Terminal information
Tex =τ?χνη abbreviation, Greek art
TR = traslate
Troff = typesetter New ROFF
Tsort = Topological SORT
TTY = Teletypewriter Telex typewriter? No use. I don't know how to relate to the text interface of Ubuntu.
TWM = Tom ' s Window Manager
TZ = TimeZone
Udev = Userspace DEV
Ulimit = User ' s LIMIT
Umask = User ' s MASK
Uniq = UNIQue
VI = VIsual = Very Inconvenient The one behind it is someone else's Emily just, inconvenient why there are so many people to use. But like I wait for beginners do not use, vim slightly better.
VIM = Vi Improved
Wall = Write All
WC = Word Count
Wine = Wine isn't an Emulator too much, and GNU ' s not Unix got a spell
Xargs = eXtended ARGuments
XDm = X Display Manager
XLFD = X Logical Font Description
XMMS = X Multimedia System
Xrdb = X Resources DataBase
XWD = X Window Dump
YACC = yet another compiler compiler
PWD = Print work diretory
Linux command shorthand and full name-2