Linux commands (what does the abbreviation mean)

Bin = BINaries ----- binary
/Dev = DEVices ----- Device
/Etc = etce----- ----- and so on
/Lib = LIBrary
/Proc = PROCesses
/Sbin = Superuser BINaries
/Tmp = TeMPorary
/Usr = Unix Shared Resources
/Var = VARiable?
FIFO = First In, First Out
GRUB = GRand uniied Bootloader
IFS = Internal Field Seperators
LILO = LInux LOader
MySQL = My is the name of the first author's daughter, SQL = Structured Query Language
PHP = Personal Home Page Tools = PHP Hypertext Preprocessor
PS = Prompt String
Perl = "Pratical Extraction and Report Language" = "Pathologically Eclectic Rubbish Lister"
Python is named after the TV series Monty Python's Flying Circus.
Tcl = Tool Command Language
Tk = ToolKit
VT = Video Terminal
YaST = Yet Another Setup Tool
Apache = "a patchy" server
Apt = Advanced Packaging Tool
Ar = archiver
As = Explorer
Awk = "Aho Weibo and Kernighan" the first letter of the author's surname
Bash = Bourne Again SHell
Bc = Basic (Better) Calculator
Bg = BackGround
Biff = the author Heidi stettings is a dog in U. C. Berkely. He likes to scream at the postman.
Cal = CALendar
Cat = CATenate
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
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
Fmt = format
Fsck = File System ChecK
Fstab = FileSystem TABle
Fvwm = F *** Virtual Window Manager
Gawk = GNU AWK
Gpg = GNU Privacy Guard
Groff = GNU troff
Hal = Hardware prepare action 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
Man = MANual pages
Mawk = Mike Brennan's AWK
Mc = Midnight Commander
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 & Email" = "Pine is not Elm"
Ping = anthropomorphic and Packet InterNet Grouper
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
R = Remote in rsh, rlogin, and rvim
Rxvt = ouR XVT
Seamoneky = me
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
Svn = SubVersioN
Tar = Tape ARchive
Tcsh = tenex c shell
Tee = T (T-pipe Interface)
Telnet = TEminaL over Network
Termcap = terminal capability
Terminfo = terminal information
Tex = Tau? The abbreviation of xympun, Greek art
Tr = traslate
Troff = Typesetter new ROFF
Tsort = Topological SORT
Tty = TeleTypewriter
Twm = Tom's Window Manager
Tz = TimeZone
Udev = Userspace DEV
Ulimit = User's LIMIT
Umask = User's MASK
Uniq = UNIQue
Vi = VIsual = Very Inconvenient
Vim = Vi IMproved
Wall = write all
Wc = Word Count
Wine = WINE Is Not an Emulator
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