addr2line[7.4.6]		adduser[4.9]
agetty[4.3]			apropos[3.2]
ar[7.4.3]			arch[3.4]
arp[5.3.11]			as[A0] (GAS is an AT&T style assembler)
awk[4.2]			badblocks[4.8]
basename[??? 7.2]		bash[3.2 4.2 6.2]
bison[1.6] (parser generator)	bunzip2[4.2.3] (linked to bzip2)
bz*: bzcat,bzcmp,bzdiff,bzegrep,bzfgrep,bzgrep,bzless,and bzmore[4.2.3]
bzip2[4.2.3]			cal[4.2]
cat[3.2]			cfdisk[4.8]
chage[4.9]			chgrp[4.2 4.9]
chmod[4.2 4.9]			chown[4.2 4.9]
chroot[4.2 5.4]			chsh[4.9]
cksum[4.2]			cmp[???]
comm[4.2]			cp[3.2]
ctrlaltdel[4.3]			cut[4.2 6.2]
date[4.2 7.2]			dd[3.2]
deluser[4.9]			depmod[4.1 4.3]
df[3.2]				diff[3.5.3 4.2 5.4]
dirname[??? 7.2]		dmesg[4.1 4.2]
dnsdomainname (linked to hostname)
domainname[5.2] (linked to hostname)
du[3.2]				dumpe2fs (for backup)
e2fsck[4.8]			e2label[4.8]
echo[3.2]			ed[3.3]
egrip[4.2] (linked to grip)	env[6.1]
expr[6.2]			factor[2.8]
fdformat[4.8]			fdisk[4.8]
fgrep[4.2] (linked to grip)	file[3.2]
find[4.2 5.4]			flex (free lexical analyzer,see bison)
free[3.2]			fsck.cramfs[4.8]
fsck.ext2[4.8]			fsck.ext3[4.8]
fsck.minix[4.8]			fsck[4.8]
fuser[4.2 4.8 5.2]		gawk[4.2]
gcc[7.1 7.4] (cc,cc1,cpp,c++,cpp0,cc1plus,and g++)
genksyms (generate kernel symbols file for debuging, part of modutils)
gettext[6.5 7.2]		grep[4.2]
groff (see man)			groupadd[4.9]
groupdel[4.9]			groups[4.9]
groups[4.9]			gunzip[4.2.3] (linked to gzip)
gzip[4.2.3]			halt[2.1 4.2]
head[4.2]			hostname[5.2]
hwclock[4.2]			iconv[4.2]
ifconfig[5.2]			inetd[5.3] (replaced by xinetd)
info[3.2]			init[4.1 4.3]
insmod[4.1 4.3]			kill[4.2]
killall (see kill)		klogd[4.3] (kernel log daemon)
last[4.9]			lastb (see last)
lastlog[4.9] (see last)		ld[7.4.3]
ldconfig[4.3 7.4]		ldd[4.3 7.4]
less[3.2]			lex (see flex)
lilo[4.4]			ln[3.2]
locale[3.6]			localedef[3.6]
locate[4.2 5.4]			login[4.3]
losetup[4.8]			ls[3.2]
lsdev[4.1]			lsmod[4.1 4.3]
make[3.5 7.4]			makewhatis[3.2]
man2html[3.2]			man[3.2]
md5sum[1.5 4.2]			mesg[4.2]
mkdir[3.2]			mke2fs[4.8]
mkfifo[7.2]			mkfs.bfs[4.8]
mkfs.cramfs[4.8]		mkfs.ext2[4.8]
mkfs.ext3[4.8]			mkfs.minix[4.8]
mkfs[4.8]			mklost+found (see fsck)
mknod[7.2 A0]			mkrescue (make a lilo boot disk, see lilol)
mkswap[4.8]			modinfo[4.1 4.3]
modprobe[4.1 4.3]		more[3.2]
mount[4.1 4.2 4.8]
msg*: msgattrib,msgcat,msgcmp,msgcomm,msgconv,msgen,msgexec,msgfilter,msgfmt,msggrep,msginit,msgmerge,msgunfmt,msguniq (see gettext)
mv[3.2]				netstat[5.2]
nice[4.2]			nisdomainname (linked to hostname)
nohup[4.2 4.7]			nroff (see man)
passwd[4.3 4.9]			patch[3.5.3 4.2]
perl[6.4]			pgrep (see grep and ps)
pidof (see pid)			ping[5.2]
pivot_root[???] (see chroot)	pkill (see kill)
poweroff (see halt)		printf[3.2 4.2 6.4 7.1]
procinfo[3.1 4.2]		ps[4.2]
pstree (see ps)			pwd[3.2]
ramsize[4.3] (linked to rdev)	rarp[5.3.11]
rdev[4.3]			reboot (see halt)
rename (see mv)			renice[4.2]
resize2fs[4.8]			rm[3.2]
rmdir[3.2]			rmmod[4.1 4.3]
rmt[???]			rootflags[4.3] (linked to rdev)
route[5.2]			runlevel[4.3]
rview[3.3] (see vim)		rvim[3.3] (see vim)
sed[4.2 6.2]			seq[???]
setfont (see unicode_start)	setleds[4.3]
sfdisk[4.8]			sh[3.2 6.2]
showfont (see unicode_start)	shred[4.8]
shutdown (see halt)		skill (see kill)
sleep[4.2]			sln[3.2] (see ln)
snice (see nice)		socklist[5.2 7.2]
sort[4.2]			split[4.2]
strings[7.4.3 7.4.6]		strip[7.4.6]
stty[???]			su[3.2]
sulogin[4.3] (login for single user ie runlevel 1)
sum[4.2]			swapoff[4.8] (link to swapon)
swapon[4.8]			sync[4.8]
syslogd[4.3] (system log daemon)
tac [3.2] (see cat)		tail[4.2]
tar[4.2.3]			tee[???]
telinit (link to init)		test[???]
top[4.2]			touch[4.9]
tr[4.2]				tty[???]
tune2fs[4.8]			umount[4.1 4.2 4.8]
uname[4.3]			uncompress[4.2.3] (linked to gunzip)
unicode_start[4.3]		unicode_stop (see unicode_start)
uniq[4.2]			updatedb[4.2 5.4]
uptime[3.1 4.2]			useradd[4.9]
userdel[4.9]			users[4.9]
vi[3.3] (linked to vim or nvi)	vidmode[4.3] (linked to rdev)
view[3.3] (see vim)		vim[3.3]
vimtutor[3.3] (see vim)		wall [4.2]
wc[4.2]				whatis[3.2]
whereis[4.2]			who[4.9]
whoami[3.2]			xargs[6.2]
xinetd[5.3]			yacc (see bison)
ypdomainname(link to hostname)
z*: zcat,zcmp,zdiff,zegrep,zfgrep,zgrep,zless,zmore,znew[4.2.3]

 U.S.A Government related:
    ANSI ARPA DoD FIPS NIST NSA
 Standard related:
    ASCII DES DFSG DSA HUG IEEE ISO HIG POSIX
 ORGs related:
    FSF GNU IEEE IETF ISO SPI TLDP UNDP W3C
 Linux and Unix related:
    *NIX Linux LUG TUX BSD POSIX
 License related:
    BSD EULA FDL DFSG GPL POSIX
 Protocols related:
    ARP CHAP DDP FTP ICMP IMAP IP IPv4 IPv6 LDAP MIME MSA MSP MSS MTU NTP PAP POP PPP RPC SMB SMTP SNMP SQL TCP TTL ToS UDP UUCP XDMCP
 Networks related:
    ARPAN ATM BIND DLCI DMZ DNAT DNS DoS FQDN IOSN IRDA ISDN ISP LAN MAC MAC MDA MSA MTA MTU MUA NAT SNAT SWAT URI URL URN VNC VPN WAN webmin WWW
 Buses related :
    AGP ATAPI IDE ISA PCI PCMCIA SCSI UART USB
 Other Hardware related:
    ALU APM ACPI CPU IA IRDA IRQ LBA MP PIC PNP POST PPC RAM ROM SMP UP
 Software related:
    BASH BASIC CC CLUE COBOL CORBA CPP CVS DAEMon DOS FORTRAN GIMP GNOME GPG GRUB GUI IDE KDE LiLo ORB PAM PERL PGP PHP TSR VFS WINE WYSIWYG WYSIWYM XML
 Characters:
    CR LF LWS
 Other:
    BIOS CUPS DGA EDSAC EDVAC ENIAC GMT i18n l10n LPD LVM MBR RAID TMTOWTDI UNIVAC UTC

*nix:	any UNIX like OS.
ACPI:	Advanced Configeration & Power Interface. (see APM)
AGP:	Accelerated Graphics Port. (a bus designed to improve performance of 3D graphics)
ALU:	Arithmetic and Logic Unit. (part of CPU)
ANSI:	American National Standards Institute.
APM:	Advanced Power Management. (now replaced by ACPI)
ARP:	Address Resolution Protocol, maps IP to Hardware address.
ARPA:	Advanced Research Project Agency.
ARPAN:	Advanced Research Project Agency Network. (internet mother)
ASCII:	American Standard Code for Information Interchange.
ATAPI:	AT Attachment Packet Interface. (like SCSI a protocol for controlling mass-storage devices eg. CDROM)
ATM:	Asynchronous Transfer Mode, a network technology. (in other context it's Automatic Teller Machine)
BASH:	Bourne Again SHell .
BASIC:	Beginner's All-purpose Sybmolic Instruction Code
BIND:	Berkeley Internet Name Domain.
BIOS:	Basic Input/Output System.
BSD:	Berkeley Software Distribution.
CC:	C Compiler.
CD:	Compact Disc.
CHAP:	Challenge Handshake Authentication Protocol.
CLUE:	Command Line User Environment. (see GUI)
COBOL:	Common Business Oriented Language
CORBA:	Common Object Request Broker Architecture. (see ORB)
CPP:	C Preprocessor.
CPU:	Central Processing Unit.
CR:	Carriage Return.
CUPS:	Common Unix Printing System.(see LPD)
CVS:	Concurrent Versions System.
Daemon:	Disk And Execution Monitor.
DDP:	Datagram Delivery Protocol. (used in AppleTalk)
DES:	Data Encryption Standard.
DFSG:	Debian Free Software Guidelines.
DGA:	Direct Grpaphics Access.
DLCI:	Data Link Connection Identifier. (used in Frame Relay networks)
DMZ:	De-Militarized Zone. (a perimeter network ie between INET & LAN)
DNAT:	Destination Network Addres Translation.
DNS:	Domain Name Server.
DoD:	(U.S) Department of Defence.
DOS:	Disk Operating System.
DoS:	Denaial of Service attack.
DSA:	Digital Signature Standard.
EDSAC:	Electronic Delay Storage Automatic Computer. (one of first computers, see ENIAC,EDVAC, and UNIVAC)
EDVAC:	Electronic Discvete Variable Automatic Computer 1946. (one of first computers, see ENIAC,EDSAC, and UNIVAC)
ENIAC:	Electronic Numerical Integrator And Computer 1943-1946. (one of first computers, see EDVAC,EDSAC, and UNIVAC)
EULA:	End-User License Agreement.
FIPS:	(U.S) Federal Information Processing Standards. (also a free partitioning tool for DOS)
FORTRAN:	Formula Translator.
FQDN:	Fully Qualified Domain Name.
FSF:	Free Software Foundation.
FTP:	File Transefere Pprotocol.
GIMP:	GNU Image Manpulator!!
GMT:	Greenwich Mean Time.
GNOME:	GNU Network Object Model Environment.
GNU:	GNU is Not Unix.
GPG:	GNU Privacy Guard.
GPL:	General Public License.
GRUB:	GRand Unified Bootloader.
GUI:	Graphical User Iinterfce. (see CLUE,HIG)
HIG:	(GNOME) Human Interface Guidelines.
i18n:	Internationalization.
IA:	Intel Arch. (the 80x86 family)
IDE:	Integrated Devalopment Enviroment. (a GUI for compiler)
IDE:	Integrated Drive Electronics. (a bus used by hard drives)
IEEE:	Institute of Electric and Electronic Engineers.
IETF:	Internet Enginering Task Force.
IMAP:	Internet Message Protocol - it's client access to your email remotly (see POP,MSA)
IOSN:	International Open Source Network
IP:	Internet Protocol. (see arpan)
IPv4:	or inet4 is Internet Protocol version 4 (32-bit "W.X.Y.Z" in dec)
IPv6:	or inet6 is Internet Protocol version 6 (128-bit "XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX" in hex)
IRC:	Internet Relay Chat.
IRDA:	InfraRed Data Association.
IRQ:	Interrupt Request.
ISA:	Industry System Architecture. (old bus)
ISDN:	Integrated Services Digital Network.
ISO:	International Standardization Organization.
ISP:	Internet Service Provider.
KDE:	K Desktop Enviorment.
l10n:	Localization.
LAN:	Local Area Networks.
LBA:	Logical Block Addressing.
LDAP:	Lightweight Directory Access Protocol
LF:	Line Feed. (new line)
LiLo:	Linux Loder.
Linux:	Linus UNIX.
LPD:	Line Printer Daemon. (see CUPS)
LUG:	Linux User Group.
LVM:	Logical Volume Management.
LWS:	Linear White Space.
MAC address:	ethernet Media Access Control. Also called Ethernet Hardware address. (48-bit like XX:XX:XX:XX:XX:XX in hex)
MBR:	Master Boot Record.
MDA:	Mail Delivery Agent. (see MTA,MUA)
MIME:	Multipurpose Internet Mail Extensions.
MIPS:	Million Instruction Per Second.
MP:	Multi Processor (more than 1 CPU) systems.
MSA:	Mail Submission Agent protocol. (see IMAP,POP)
MSP:	Message Send Protocol.
MSS:	Maximum Segment Size. (see MTU)
MTA:	Mail Transport Agent. (see MDA,MUA)
MTU:    Maximum Transmission Unit.
MUA:	Mail User Agent.  (see MDA,MTA)
NAT:	Network Addres Translation.
NBP:	Name Binding Protocol.
NIS:	Netword Information Server.
NIST:	(American) National Institute of Standards and Technology.
NSA:	(American) National Security Agency.
NTP:	Network Time Protocol.
ORB:	Object Request Broker. (see CORBA)
PAM:	Pluggable Authentication Module.
PAP:	Password Authentication Protocol.
PCI:	Pheripheral Component Interconnect. (a 32-bit bus designed by Intel)
PCMCIA:	Personal Computer Memory Card International Association. (a bus used in laptops)
PERL:	Pathalogical Eelectic Rubbish Lister.
PERL:	Practicl Everythhing Really Likeable.
PERL:	Practicl Extrction Reoprt Language.
PGP:	Pretty Good Privacy.
PHP:	PHP Hypertext Preprocessor.
PIC:	Programmable Interrupt Controller.
PNP:	Plug and Play.
POP:	PostOffice Protocol - it's client access to your email remotly then delete it from server (see IMAP,MSA)
POSIX:	Portable Operating System Interface, an attempt to standardize UNIX-like OSes.
POST:	Power On Self Test.
PPC:	Power Personal Computer.
PPP:	Point-to-Point Protocol.
RAID:	Redundant Array of Indepenant Disks.
RAM:	Random Access Memory
ROM:	Read Only Memory
RPC:	(Sun Mircrosystems) Remote Procedure Call.
RTMP:	Routing Table Maintenance Protocol. (ddp port 1)
SCSI:	Small Computer Systems Interconnect. (fast bus for larg size data storage)
SMB:	Session Management Block protocol. Also called netbios. (in Linux we have samba)
SMP:	Symmetric Multi Processing.
SMTP:	Simple Mail Transfer Protocol - to send emails.
SNAT:	Source Network Addres Translation.
SNMP:	Simple Network Management Protocol.
SPI:	Software in the Public Interest. (related to Debian)
SQL:	Structured Query Language.
SWAT:	Samba Web Administration Tool. (windows networks, see SMB)
TCP/IP:	Transmission Control Protocol / Internet Protocol
TLDP:	The Linux Documentation Project.
TMTOWTDI:	There's More Than One Way To Do It.
TSR:	Terminate but stay resedent in memory.
TTL flag:	Time To Live. (in TCP)
TUX:	Torvalds UNIX.
ToS flag:	Type of Service.(in TCP)
UART:	Universal Asynchronous Receiver Transmitter. (used in real modems)
UDP:	User Datagram Protocol.
UNDP:	United Nations Development Programme.
UNIVAC:	UNIVersal Automatic Computer 1951. (one of first computers, see ENIAC,EDVAC,and EDSAC)
UP:	Uniprocessor (1 CPU) system.
URI:	Uniform Resource Identifier.
URL:	Uniform Resource Location. 
URN:	Uniform Resource Name.
USB:	Universal Serial Bus. (small general perpose bus eg. scanners printers mass-storage ...)
UTC:	Universal Time Coordenaite.
UUCP:	Unix to Unix Communication Protocol.
VFS:	Virtual File System.
VNC:	Virtual Network Computing.
VPN:	Virtual Private Network.
W3C:	World wide web Consortium.
WAN:	Wide Area Networks.
webmin:	web based system administration utility.
WINE:	Wine Is Not Emulator.
WWW:	World Wide Web.
WYSIWYG: What You See Is What You Get.
WYSIWYM: What You See Is What You Mean.
XDMCP:	X Display Management Control Protocol.
XML:	eXtensible Markup Language.
YP:	Yello Pages. (old name for NIS)
ZIP:	Zone Information Protocol.