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Home / Computing & IT / Unix

Computing & IT >> Unix Abbreviations

Look through 485 acronyms and abbreviations related to Unix:

SYN — Synchronous
FCNTL — file control
FTP — File Transfer Protocol
GETTY — get tty
EM — emphasize
WWW — World Wide Web
IRC — Internet Relay Chat
XENIX — Xenos Unix
UDP — User Datagram Protocol (FDDI related)
ANSI — American National Standards Institute, Inc.
XML — Extensible Markup Language
STRCAT — string concatenate
PCLOSE — process close
NFS — Network File System
STRCHR — string character
SIGABRT — signal: abort
HTTP — Hypertext Transfer Protocol
SMTP — Simple Mail Transfer Protocol
SCSI — Small Computer System Interface
IP — Internet Protocol
CR — Carriage Return
EXECVE — execv with environment
STRSTR — string string
C — Center
RFC — Request For Comment
TCP — Transmission Control Protocol
NIS — Network Information System
UNISTD.H — Unix standard
NET — Network
MIL — Military
DEC — Digital Equipment Corporation
STRCSPN — string character span
DHCP — Dynamic Host Configuration Protocol
SLIP — Serial Line Interface Protocol
YACC — Yet Another Compiler-Compiler
CC — C Compiler
ASCII — American National Standard Code for Information Interchange
YP — Yellow Pages
SGML — Standard Generalized Markup Language
RCS — Revision Control System
NBSP — Non-Breaking Space
HD — Hard Disk
STRSPN — string span
A — Anchor
ICMP — Internet Control Message Protocol
STRCPY — string copy
XARGS — extended arguments
RIP — Routing Information Protocol
PNG — Portable Network Graphics (graphic file standard/extension)
STRTOK — string tokenize

WC — Word Count
URL — Universal Resource Locator
BSD — Berkeley Software Distribution
KBD — Keyboard
DCE — Distributed Computing Environment
PS — PostScript
STRRCHR — string character
NL — New Line
TCL — Tool Command Language
SYNC — Synchronize
CVS — Concurrent Versions System
ACK — Acknowledge (telecommunications; Cf. NAK)
NIC — Network Information Center
LF — Line Feed
ARP — Address Resolution Protocol (ATM)
VALIGN — vertical alignment
RMDIR — Remove Directory
SO — Shift-Out
DUP — Duplicate
CAN — Cancel
OSI — Open Systems Interconnection (iso Standard)
XDPR — X dump print
PGP — Pretty Good Privacy (encryption)
DIV — Division
EXEC — Execute
TMP — Temporary
ORG — Organization
USL — UNIX System Laboratories
EXECV — execute
BRK — Break
CAT — Concatenate
FS — File Separator
FSF — Free Software Foundation
I — Intermediate
ETC — Et Cetera
CMP — Compare
PASSWD — Password
BG — Background
C — Close
EXECVP — execv with path search
RAID — Redundant Array of Inexpensive Disks
MHS — Message Handling System (electronic)
SNMP — Simple Network Management Protocol (ATM)
MV — Move
TAR — Tape Archive
C — Cell
AACUTE — A with accent acute
STRCMP — string compare
WM — Window Manager
REALLOC — re-allocate

FPRINTF — file print formatted
BSH — Bourne Shell
BS — Backspace
EOT — End Of Transmission
ALT — Alternative Lengthening of Telomeres
TTT — Tic Tac Toe
RFD — Request For Discussion
LS — Listing
RCP — Remote Copy Protocol
IBM — International Business Machines Corporation
GOV — Government
XDM — X Display Manager
NNTP — Network News Transfer Protocol
STRPBRK — string pointer break
EXECLP — execl with path search
CALLOC — cleared allocation
I — Italic
VARARGS.H — variable arguments
C — Cessna
CRC — Contrôle de Redondance Cyclique (French: Cyclic Redundancy Check)
PPP — Point-to-Point Protocol
HALIGN — horizontal alignment
C — Century
MWM — Motif Window Manager
VAR — Variable
PS — Process Status
C — Cent
LPQ — Line Printer Queue
C — Centavo
TH — Table Header
GREP — Global Regular Expression Print
CXX — C File
STDLIB.H — standard library
QDAEMON — queue daemon
C — Centum
FF — Form Feed
CI — Check In
SI — Shift In
D — Daemon
SED — Stream Editor
P — Paragraph
ERRNO — error number
COM — Commercial
BOOTP — Bootstrap Protocol
V — Version
NTP — Network Time Protocol
US — Unit Separator
AELIG — AE ligature
CD — Change Directory
MAN — Manual

MULTICS — Multiplexed Information and Computing System
SCANF — scan formatted
PROF — Profile
TTY — Teletype Telex Machine
OL — Ordered List
XMKMF — X make makefile
STX — Start of Text
B — Bold Text
SO — Shared Object
IOCTL — Input/Output Control
STDIO.H — Standard Input/Output Header
LPC — Line Printer Control
SIGUSR1 — signal: user-defined signal 1
GS — Group Separator
SIGILL — signal: illegal instruction
STTY — set tty
STRLEN — string length
PPTP — Point-to-Point Tunneling Protocol
LPRM — Line Printer Remove
GIF — Graphic Interchange Format
ZIP — Ziv packer
PERL — Practical Extraction and Report Language
PDP — Programmed Data Processor
RS — Record Separator
RLOGIN — Remote Login in Unix
CTIME — convert time
SIGALRM — signal: alarm clock
CDE — Common Desktop Environment
CSH — C Shell Programming
BEL — Bennett Environmental, Inc. (stock symbol; formerly the symbol for Bell Atlantic)
SIGTTIN — signal: TTY input
DIR — Directory
TFTP — Trivial File Transfer Protocol (ATM)
LS — Language Specialist
LS — List-Serv
HP — Hewlett Packard's
LIB — Libra
SIGHUP — signal: hangup
CCEDIL — C with cedille
AIX — Advanced Interactive Executive (IBM)
SSCANF — string scan formatted
TGZ — tar gz
ISATTY — is a tty
LD — Library Loader
OSF — Open Software Foundation
SIGEMT — signal: EMT instruction
TCSH — Tenex C Shell
UNAME — Unix name
SIGTSTP — Signal: terminal stop
JAVA — [not an acronym] A general purpose, high-level, object-oriented, cross-platform programming language developed by Sun Microsystems

SAMP — Sample
POPEN — process open
AWK — Aho, Weinberger, Kernighan
VI — Visual
PAX — Portable Archive Exchange
EXECL — execute list
FTOK — file token
PUSHD — push directory
VT — Video Terminal
TIFF — Tag Image File Format
CTYPE.H — character types
IMAP2 — Interim Mail Access Protocol, Version 2
SZLIG — sz ligature
LORDER — library order
SU — Superuser
SCCS — Source Code Control System
IMG — Image
UCB — University of California at Berkeley's
R — Remote
CHDIR — Change Directory
LPD — Line Printer Daemon
HREF — Hypertext Reference
ETX — End of Text
TR — Table Row
NAK — Negative Acknowledge
LANG — language
ENV — Environment
FG — Foreground
HT — Horizontal Tabulator
DAEMON — Disk And Execution Monitor
KSH — Korn Shell Programming
BASH — Bourne Again Shell
SINIX — Siemens Unix
ATOB — ASCII to Binary
LP — Line Printer
ULIMIT — user's limit
DVI — device independant
SIGSEGV — signal: segmentation violation
SIGTERM — signal: terminate
EQN — Equation
AGRAVE — A with accent grave
SAR — System Activity Report
AS — Assembler
ARPA — Advanced Research Project Agency's
SVR4 — System V Release 4 Unix
DIFF — Difference
ATOI — ASCII to Integer
SIGBUS — signal: bus error
DNS — Domain Name Server
SPRINTF — string print formatted

COMM — Common
FSCK — File System Check
PRE — Preformatted
RC — Run Commands (UNIX)
RSH — Remote Shell
DLE — Data Link Escape
EDU — Educational Institutions
G — GNU C Compiler
BR — Break
ELM — Electronic Mail for UNIX
ETB — End of Transmission Block
ATOF — ASCII to Float
NUL — Null
DEV — Devices
EDU — Educational Disadvantage Unit
VIM — Vi Improved
DF — Disk Free
U — Underline
DWARF — Debug with Arbitrary Record Format
ACIRC — A with accent circonflexe
NOHUP — no hang-up
CAL — Calendar
AR — Archiver
EDU — Educational Development Unit
A — Archive
BIFF — not an acronym
CHOWN — Change Owner
QSORT — quick sort
SBIN — superuser binaries
SIGTTOU — signal: TTY output
SIGFPE — signal: floating point exception
ROFF — run-off
TZ — Time Zone
TT — Teletype
TERMCAP — TERMinal CAPability
SIGCHLD — Signal: child
U — User
RCP — remote copy program
UUCP — Unix-to-Unix communication protocol
FUSER — file user
TEX — Tau Epsilon Chi
TR — Translate
AUML — A with umlaut
USR — Unix Shared Resources
UTMP — temporary file with user information
DEL — Delete
SRAND — seed random number generator
DIFF3 — differences of three files
TBL — Table
GLOB — Global

SZ — send Zmodem
STDARG.H — standard arguments
SCO — Santa Cruz Operation, Inc.
STRTOL — string to long
OCLOCK — O shaped clock
IEEE — Institute of Electrical and Electronical Engineers
SPAM — not an acronym
EDU — Educational Organizations
TNS — Transparent Network Substrate
PING — not an acronym
RANLIB — random access library
ENQ — Enquiry
IMAKE — interface to make
LI — List Item
PS1 — prompt string 1
M4 — macro processor version 4
PR — prepare
A/UX — Apple Unix
SOH — Start Of Header
EVAL — Evaluate
UNIQ — Unique
DC1 — Device Control 1
EXECLE — execl with environment
SUB — Substitute
SPC — Space
NM — Names
TERMINFO — Terminal Information
HPUX — Hewlett-Packard Unix
H — Header file
FTW — File Tree Walk
POVRAY — Persistence of Vision Raytracer
SUB — Subscript
SIGURG — signal: urgent I/O condition
XWUD — X window un-dump
PCC — Portable C Compiler
SH — Shell
EXPR — Expression
PINE — PINE Is Nearly Elm(Pine Internet News and E-mail)
ED — Editorial Division
MALLOC — memory allocation
REC — Recreation (ground)
JSH — job-control shell
BIN — binaries
CRON — Chronos
LN — Link
REGCMP — regular expression compile
FTIO — fast tape input/output
Y — yacc
MKFS — Make File system
MIME — Multi-Purpose Internet Mail Extensions

CHMOD — Change Mode
ESAC — case
TSH — Trusted shell
TSORT — topological sort
GZ — Gnu Zip
NOBR — No break
DIRNAME — directory name
RMT — Raw Magnetic Tape
SIGWINCH — Signal: window changed
PTY — pseudo tty
BC — better calculator
MOTD — motto of the day
NOM — Nomenclature
XRDB — X resource database
SRC — Source
REGEX — regular expression execute
FSTAB — File System Table
RARP — Reverse ARP
S — server-parsed HTML
LPR — Line Print
ISO — not an acronym
NN — No News
VT — Vertical tabulator
PRS — Print Revision Summary
TROFF — typesetter roff
MINIX — miniature Unix
XFD — X Font Display
CB — C-Beautifier
PBM — Portable Bitmap
LINT — not an acronym
H — Header
LD — Loader Domain
RMT — Remote Magnetic Tape
DU — Disk Usage
PICO — PINE Composer
PRINTCAP — printer capability
BTOA — Binary to ASCII
CPIO — Copy In and Out
ED — Editorial Department
PRINTF — Print Formatted
NAWK — New AWK
STDDEF.H — standard definitions
RMAIL — restricted mail
L — lex
TK — Tcl-based Toolkit
SA — stub archive
GNU — GNU is not Unix
SUP — Superscript
FMT — Format
LEX — Lexical Analyser

SPOOL — Simultaneous Peripheral Operation OnLine
LS — List Show
RZ — Receive Z-modem
UL — Unsorted List
TEE — T pipe fitting
Z — ?
O — object code
ADB — advanced debugger
SIGCONT — signal: continue
CHSH — change shell
FSCANF — file scan formatted
VPRINTF — varargs print formatted
EGREP — extended grep
DL — Define List
W3C — Word Wide Web Consortium
LPP — licensed program products
MEM — Memory
TELNET — TErminal over NETwork
UMASK — user's mask
H1 — Header 1
ETH — ?
SBRK — segment break
MPEG — motion picture expert group
— archive
CP — Copy (Unix command)
BSEARCH — binary search
C89 — 1989 C compiler
JPEG — joint pictures expert group
POPD — pop directory
NROFF — new roff
CHARGEN — character generator
TD — Table Data
XON — Transmission On
SHAR — SHell ARchive
USENET — User's Network
MKNOD — make node
ESC — Escape
FD — file descriptors
RM — Remove
INODE — Index Node
ELF — Extensible Linking Format
COM — Commercial Operations Management
TCLSH — Tcl shell
SIGIO — Signal: input/output
DC — Desk Calculator
SIGINT — signal: interruption
OD — Octal Dump
RSH — Restricted Shell
WALL — write all
FGREP — fixed-string grep

R — Raw
FD — Floppy Diskette
XPM — X Pixel Map
DD — dictionary definition
EX — extended editor
KMEM — kernel memory
MVDIR — move directory
LN — Link number
SIGSYS — Signal: system call
CHGRP — Change Group
SDB — symbolic debugger
DT — Dictionary Term
EMACS — Emacs makes any computer slow
LD — link editor
SYSV — System V
IFS — internal field seperators
EMACS — Escape Meta Alternate Control Shift
DBX — Extended Debugger
NL — number lines
ED — Editorial Decision
RMDEL — remove delta
PWD — print work directory
WISH — windowing shell
XOFF — Transmission Off
XWD — X Window Dump
XBM — X BitMap Format
TAB — Tabulator
CO — Check-Out
ID — Identity
LINUX — from Linus
XMP — example
LHARC — Lempl-Huffman archiver
LOGNAME — log-in name
RFO — request for opinions
FC — Fix Command

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