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Home / Computing & IT / Unix

Computing & IT >> Unix Abbreviations

Look through 485 acronyms and abbreviations related to Unix:

FCNTL — file control
FTP — File Transfer Protocol
GETTY — get tty
WWW — World Wide Web
IRC — Internet Relay Chat
NFS — Network File System
ANSI — American National Standards Institute, Inc.
SIGABRT — signal: abort
HTTP — Hypertext Transfer Protocol
SCSI — Small Computer System Interface
XENIX — Xenos Unix
STRCAT — string concatenate
SMTP — Simple Mail Transfer Protocol
IP — Internet Protocol
SYN — Synchronous
C — Center
RFC — Request For Comment
PCLOSE — process close
NIS — Network Information System
TCP — Transmission Control Protocol
NET — Network
STRCHR — string character
MIL — Military
CR — Carriage Return
YACC — Yet Another Compiler-Compiler
YP — Yellow Pages
SLIP — Serial Line Interface Protocol
UDP — User Datagram Protocol (FDDI related)
CC — C Compiler
HD — Hard Disk
SGML — Standard Generalized Markup Language
A — Anchor
DEC — Digital Equipment Corporation
DHCP — Dynamic Host Configuration Protocol
ICMP — Internet Control Message Protocol
STRSTR — string string
UNISTD.H — Unix standard
PNG — Portable Network Graphics (graphic file standard/extension)
RCS — Revision Control System
EXECVE — execv with environment
WC — Word Count
BSD — Berkeley Software Distribution
NL — New Line
RIP — Routing Information Protocol
SO — Shift-Out
KBD — Keyboard
CAN — Cancel
CVS — Concurrent Versions System
NIC — Network Information Center
EXEC — Execute

USL — UNIX System Laboratories
TCL — Tool Command Language
ASCII — American National Standard Code for Information Interchange
DCE — Distributed Computing Environment
PS — PostScript
STRRCHR — string character
FS — File Separator
XARGS — extended arguments
DUP — Duplicate
CMP — Compare
I — Intermediate
BRK — Break
TMP — Temporary
NBSP — Non-Breaking Space
DIV — Division
LF — Line Feed
ORG — Organization
ETC — Et Cetera
CAT — Concatenate
XDPR — X dump print
WM — Window Manager
FSF — Free Software Foundation
TAR — Tape Archive
ACK — Acknowledge (telecommunications; Cf. NAK)
RMDIR — Remove Directory
BG — Background
STRSPN — string span
STRCSPN — string character span
MV — Move
C — Close
LS — Listing
SYNC — Synchronize
VALIGN — vertical alignment
PGP — Pretty Good Privacy (encryption)
XDM — X Display Manager
ARP — Address Resolution Protocol (ATM)
URL — Universal Resource Locator
C — Cell
I — Italic
STRTOK — string tokenize
GOV — Government
C — Centavo
TTT — Tic Tac Toe
C — Cessna
PS — Process Status
BSH — Bourne Shell
BS — Backspace
MWM — Motif Window Manager
OSI — Open Systems Interconnection (iso Standard)
SI — Shift In

C — Century
SNMP — Simple Network Management Protocol (ATM)
C — Cent
CI — Check In
C — Centum
STRCPY — string copy
VAR — Variable
D — Daemon
CD — Change Directory
P — Paragraph
RCP — Remote Copy Protocol
ALT — Alternative Lengthening of Telomeres
TH — Table Header
MHS — Message Handling System (electronic)
V — Version
PROF — Profile
COM — Commercial
B — Bold Text
PPP — Point-to-Point Protocol
NNTP — Network News Transfer Protocol
FF — Form Feed
OL — Ordered List
CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
SO — Shared Object
STRPBRK — string pointer break
LPC — Line Printer Control
EXECV — execute
CXX — C File
US — Unit Separator
STRCMP — string compare
NTP — Network Time Protocol
STX — Start of Text
VARARGS.H — variable arguments
XML — Extensible Markup Language
IOCTL — Input/Output Control
IBM — International Business Machines Corporation
ZIP — Ziv packer
GREP — Global Regular Expression Print
QDAEMON — queue daemon
LPRM — Line Printer Remove
RS — Record Separator
MAN — Manual
RFD — Request For Discussion
PDP — Programmed Data Processor
EXECVP — execv with path search
HALIGN — horizontal alignment
REALLOC — re-allocate
EXECLP — execl with path search
GS — Group Separator
STDIO.H — Standard Input/Output Header

CSH — C Shell Programming
AACUTE — A with accent acute
AELIG — AE ligature
TTY — Teletype Telex Machine
XMKMF — X make makefile
STRLEN — string length
BEL — Bennett Environmental, Inc. (stock symbol; formerly the symbol for Bell Atlantic)
EOT — End Of Transmission
LS — Language Specialist
PERL — Practical Extraction and Report Language
RAID — Redundant Array of Inexpensive Disks
CDE — Common Desktop Environment
LS — List-Serv
SCANF — scan formatted
CALLOC — cleared allocation
STDLIB.H — standard library
STTY — set tty
PPTP — Point-to-Point Tunneling Protocol
BOOTP — Bootstrap Protocol
ERRNO — error number
FPRINTF — file print formatted
LD — Library Loader
LIB — Libra
SED — Stream Editor
AIX — Advanced Interactive Executive (IBM)
GIF — Graphic Interchange Format
R — Remote
SIGUSR1 — signal: user-defined signal 1
TFTP — Trivial File Transfer Protocol (ATM)
PASSWD — Password
DIR — Directory
POPEN — process open
OSF — Open Software Foundation
CTIME — convert time
SINIX — Siemens Unix
SSCANF — string scan formatted
PAX — Portable Archive Exchange
UNAME — Unix name
LP — Line Printer
SIGTTIN — signal: TTY input
ARPA — Advanced Research Project Agency's
TR — Table Row
VI — Visual
SIGEMT — signal: EMT instruction
IMG — Image
SIGALRM — signal: alarm clock
UCB — University of California at Berkeley's
ISATTY — is a tty
AWK — Aho, Weinberger, Kernighan
SU — Superuser

DAEMON — Disk And Execution Monitor
SAMP — Sample
TIFF — Tag Image File Format
IMAP2 — Interim Mail Access Protocol, Version 2
RLOGIN — Remote Login in Unix
ATOB — ASCII to Binary
VT — Video Terminal
NAK — Negative Acknowledge
PUSHD — push directory
HT — Horizontal Tabulator
SAR — System Activity Report
AS — Assembler
SCCS — Source Code Control System
HREF — Hypertext Reference
ETX — End of Text
ATOF — ASCII to Float
EM — emphasize
PRE — Preformatted
HP — Hewlett Packard's
CCEDIL — C with cedille
CHDIR — Change Directory
U — User
LPD — Line Printer Daemon
U — Underline
FTOK — file token
TCSH — Tenex C Shell
RSH — Remote Shell
EDU — Educational Disadvantage Unit
SPRINTF — string print formatted
SIGILL — signal: illegal instruction
FG — Foreground
SIGBUS — signal: bus error
PR — prepare
BR — Break
DNS — Domain Name Server
SBIN — superuser binaries
KSH — Korn Shell Programming
DIFF — Difference
DF — Disk Free
RCP — remote copy program
FSCK — File System Check
ATOI — ASCII to Integer
LANG — language
SCO — Santa Cruz Operation, Inc.
TERMCAP — TERMinal CAPability
TEX — Tau Epsilon Chi
EDU — Educational Development Unit
DEV — Devices
A — Archive
BASH — Bourne Again Shell

CTYPE.H — character types
RANLIB — random access library
VIM — Vi Improved
UNIQ — Unique
TGZ — tar gz
TZ — Time Zone
SZ — send Zmodem
ED — Editorial Division
TR — Translate
EQN — Equation
JAVA — [not an acronym] A general purpose, high-level, object-oriented, cross-platform programming language developed by Sun Microsystems
LI — List Item
DWARF — Debug with Arbitrary Record Format
SPC — Space
RC — Run Commands (UNIX)
PS1 — prompt string 1
SH — Shell
STDARG.H — standard arguments
EDU — Educational Institutions
FUSER — file user
G — GNU C Compiler
AUML — A with umlaut
DLE — Data Link Escape
SZLIG — sz ligature
SIGFPE — signal: floating point exception
EXECL — execute list
ROFF — run-off
IMAKE — interface to make
DIFF3 — differences of three files
NUL — Null
CHOWN — Change Owner
ACIRC — A with accent circonflexe
DVI — device independant
CAL — Calendar
AGRAVE — A with accent grave
AR — Archiver
SIGTERM — signal: terminate
IEEE — Institute of Electrical and Electronical Engineers
HPUX — Hewlett-Packard Unix
A/UX — Apple Unix
UTMP — temporary file with user information
DEL — Delete
ETB — End of Transmission Block
SRAND — seed random number generator
SIGHUP — signal: hangup
XRDB — X resource database
REGCMP — regular expression compile
FSTAB — File System Table
GLOB — Global
ULIMIT — user's limit

NOHUP — no hang-up
STRTOL — string to long
PINE — PINE Is Nearly Elm(Pine Internet News and E-mail)
PRS — Print Revision Summary
CHMOD — Change Mode
XFD — X Font Display
LPQ — Line Printer Queue
PTY — pseudo tty
TSH — Trusted shell
TNS — Transparent Network Substrate
MULTICS — Multiplexed Information and Computing System
SIGURG — signal: urgent I/O condition
XWUD — X window un-dump
TEE — T pipe fitting
ENV — Environment
SIGSEGV — signal: segmentation violation
M4 — macro processor version 4
SVR4 — System V Release 4 Unix
NM — Names
MALLOC — memory allocation
MINIX — miniature Unix
REC — Recreation (ground)
EDU — Educational Organizations
H — Header
BIN — binaries
ENQ — Enquiry
TSORT — topological sort
GZ — Gnu Zip
SOH — Start Of Header
POVRAY — Persistence of Vision Raytracer
SUB — Substitute
LORDER — library order
TBL — Table
Y — yacc
TELNET — TErminal over NETwork
RMAIL — restricted mail
TERMINFO — Terminal Information
OCLOCK — O shaped clock
GNU — GNU is not Unix
CB — C-Beautifier
ESAC — case
JSH — job-control shell
SIGTTOU — signal: TTY output
MOTD — motto of the day
LEX — Lexical Analyser
ELM — Electronic Mail for UNIX
RMT — Remote Magnetic Tape
DC1 — Device Control 1
BTOA — Binary to ASCII
UL — Unsorted List

UUCP — Unix-to-Unix communication protocol
DIRNAME — directory name
LPR — Line Print
NAWK — New AWK
NN — No News
MKFS — Make File system
TK — Tcl-based Toolkit
VT — Vertical tabulator
SA — stub archive
QSORT — quick sort
H — Header file
CHSH — change shell
COMM — Common
DU — Disk Usage
BIFF — not an acronym
MPEG — motion picture expert group
— archive
EVAL — Evaluate
LS — List Show
TCLSH — Tcl shell
LN — Link
RARP — Reverse ARP
ED — Editorial Department
PCC — Portable C Compiler
RMT — Raw Magnetic Tape
Z — ?
STDDEF.H — standard definitions
ADB — advanced debugger
L — lex
TROFF — typesetter roff
XPM — X Pixel Map
PBM — Portable Bitmap
LD — Loader Domain
SPOOL — Simultaneous Peripheral Operation OnLine
CRON — Chronos
SIGCHLD — Signal: child
FSCANF — file scan formatted
KMEM — kernel memory
CP — Copy (Unix command)
EXECLE — execl with environment
FTIO — fast tape input/output
RZ — Receive Z-modem
S — server-parsed HTML
CPIO — Copy In and Out
VPRINTF — varargs print formatted
NOBR — No break
REGEX — regular expression execute
PRINTF — Print Formatted
TT — Teletype
WALL — write all

POPD — pop directory
USENET — User's Network
MKNOD — make node
USR — Unix Shared Resources
SPAM — not an acronym
ESC — Escape
SUP — Superscript
FMT — Format
H1 — Header 1
BC — better calculator
XBM — X BitMap Format
PING — not an acronym
ETH — ?
SBRK — segment break
SIGTSTP — Signal: terminal stop
COM — Commercial Operations Management
C89 — 1989 C compiler
EGREP — extended grep
W3C — Word Wide Web Consortium
LPP — licensed program products
EXPR — Expression
OD — Octal Dump
JPEG — joint pictures expert group
O — object code
EMACS — Emacs makes any computer slow
FGREP — fixed-string grep
NROFF — new roff
WISH — windowing shell
R — Raw
TD — Table Data
SIGCONT — signal: continue
LD — link editor
RM — Remove
SYSV — System V
FTW — File Tree Walk
ELF — Extensible Linking Format
NOM — Nomenclature
DBX — Extended Debugger
SIGIO — Signal: input/output
EX — extended editor
TAB — Tabulator
CHGRP — Change Group
SDB — symbolic debugger
ISO — not an acronym
MEM — Memory
RSH — Restricted Shell
MIME — Multi-Purpose Internet Mail Extensions
SHAR — SHell ARchive
XON — Transmission On
LHARC — Lempl-Huffman archiver

PICO — PINE Composer
LOGNAME — log-in name
BSEARCH — binary search
MVDIR — move directory
SRC — Source
LN — Link number
NL — number lines
DL — Define List
DC — Desk Calculator
SIGINT — signal: interruption
ED — Editorial Decision
DT — Dictionary Term
SIGWINCH — Signal: window changed
UMASK — user's mask
CO — Check-Out
CHARGEN — character generator
FD — Floppy Diskette
XOFF — Transmission Off
FD — file descriptors
INODE — Index Node
LINT — not an acronym
XWD — X Window Dump
IFS — internal field seperators
EMACS — Escape Meta Alternate Control Shift
DD — dictionary definition
SUB — Subscript
PRINTCAP — printer capability
SIGSYS — Signal: system call
RMDEL — remove delta
PWD — print work directory
ID — Identity
FC — Fix Command
LINUX — from Linus
XMP — example
RFO — request for opinions

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