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False (Unix)





Encyclopedia results for False (Unix)

  1. False

    wiktionary false falsehood False or falsehood may refer to False logic Lie or falsehood, a type of deception in the form of an untruthful statement Falsity or falsehood, in law, deceitfulness by one party that results in damage to another Falsies padding for use in a brassiere to create the appearance of larger breasts FALSE , a programming language false Unix , a Unix command False album False album , an album by Gorefest Matthew Dear or False, American DJ and producer Falsehood film Falsehood film , a 2001 American short film starring Marie Noelle Marquis See also columns list 2 False accusations False advertising False alarm False arrest False confession False consciousness False conviction False dilemma False document False ending False etymology False flag False friend False gharial False hero False imprisonment False memory False neurotransmitter False pregnancy False prophet False self False start Truth disambig de False it Falso scn False ...   more details



  1. As (Unix)

    notability date September 2011 Unreferenced stub auto yes date December 2009 Expert subject Telecommunications date November 2008 infobox software name As latest release version latest release date platform website as is a generic name for an assembly language Assembler assembler on Unix . The GNU Project s assembler is named GNU assembler Gas . Category Assemblers Category Unix programming tools Unix stub fr As Unix ru As ...   more details



  1. Unix

    Infobox OS name Unix logo screenshot Image Unix history simple.svg 250px caption Evolution of Unix and Unix ... model Historically Closed source software closed source , now some Unix projects Berkeley Software ... Command line interface & Graphical user interface Graphical X Window System family Unix released 1969 license Proprietary software Proprietary working state Active Unix officially trademarked as UNIX , sometimes also written as span style font variant small caps Unix span is a Computer multitasking ... Ken Thompson , Dennis Ritchie , Brian Kernighan , Douglas McIlroy , and Joe Ossanna . The Unix operating ... porting to other hardware. Today s Unix system evolution is split into various branches, developed ..., owns the UNIX trademark. Only systems fully compliant with and certified according to the Single UNIX Specification are qualified to use the trademark others might be called Unix system like or Unix ... is a Unix like operating system? Unix.org FAQ ref of this term. However, the term Unix is often used ... 1970s and early 1980s, the influence of Unix in academic circles led to large scale adoption of Unix particularly of the Berkeley Software Distribution BSD variant, originating from the University ... all variants of Unix, the most widely used are Linux Citation needed date January 2012 , which is used ... or e book readers. Today, in addition to certified Unix systems such as those already mentioned, Unix like operating systems such as MINIX , Linux , Android operating system Android , and BSD descendants ... Unix may be used to describe an operating system that has the characteristics of either Version 7 Unix or UNIX System V . Overview Unix operating systems are widely used in Server computing server s, workstation ... unixs revenge title Unix s Revenge publisher asymco date 2010 09 29 accessdate 2010 11 09 ref The Unix ... computers. Originally, Unix was meant to be a programmer s workbench more than to be used ... first4 Mike title Unix Power Tools year 2002 isbn 0 596 00330 7 ref Both Unix and the C programming ...   more details



  1. At (Unix)

    lowercase In Unix like computer operating system s, the code at code command is used to schedule command computing command s to be executed once, at a particular system time time in the future. More precisely, it reads a series of commands from standard input and collects them into one at job which is carried out at a later date. The at job inherits the current environment, so that it is executed in the same working directory and with the same environment variable s set as when it was scheduled. It differs from code cron code which is used for recurring executions e.g. once an hour, every Tuesday, January 1 every year . As with code cron code , many Unix systems allow the administrator to restrict access to the code at code command. code at code can be made to mail a user when done carrying out a scheduled job of theirs, can use more than one job queue, and can read a list of jobs to carry out from a file instead of standard input. A sample command to compile a C programming language C program at 11 45 a. m. on January 31st and e mail the results Standard streams STDOUT and STDERR to your user ID would be source lang bash echo cc o foo foo.c at 1145 at 1145 jan 31 at cc o foo foo.c at D press Control D while at the beginning of a line atq 1234 2011 08 12 11 45 cc o foo foo.c user atrm 1234 atq source In some Unix like computer operating system s it uses a Daemon computer software daemon , code atd code , which waits in the background periodically checking the list of jobs to do ... s replacement for at. List of Unix programs External links man cu at SUS execute commands at a later time man 1 at queue, examine or delete jobs for later execution unix commands unix stub Category Standard Unix programs At Category Unix SUS2008 utilities Category Unix process and task management related software ca At Unix cs At Unix de At Unix el At Unix es At Unix fr At Unix it At Unix hu At Unix ja At UNIX pl At Unix pt At Unix ro At Unix ru At uk At ...   more details



  1. FALSE

    FALSE Merge proposal About the programming language other uses False disambiguation Infobox programming language name FALSE released Start date 1993 developer Wouter van Oortmerssen influenced by Forth programming language Forth influenced Brainfuck website http strlen.com false strlen.com FALSE ... 1024 bytes written in 68k 68000 Assembly language assembly . According to Van Oortmerssen, FALSE ... . FALSE is notably more tractable than most esoteric programming languages. The fundamental operations ... in FALSE comes mostly from the low level nature of the language, which has the feel of a Forth ... expressions, control flow statements, and input output operations. FALSE operations are done using ... , 32 bit integer s, boolean values 0 representing false 1 representing true , and lambda calculus expressions. These can be used on the stack or stored in Variables variables . Basic operators FALSE ... use of the stack in FALSE eliminates a great deal of need for variables, and they are mainly used ... the top value by 1 , and applies this to 3, leaving the stack as 4. Control flow FALSE has two control ... to 1. Strings String computer science String s are not a real data type in FALSE they only exist ..., FALSE has a number of operators for input output from and to standard streams . code . code period ... from the FALSE Programming Language web page Hello world program Hello world Hello world File copy utility ... 8 1 1 f ? f fac in FALSE calculate the factorial of 1..8 0 0 8 result f . ? illegal input ? Write ... language , from which the structure of FALSE was derived. Esoteric programming language Stack oriented programming language External links http strlen.com false false.txt The FALSE Programming Language Manual http strlen.com false The FALSE Programming Language Web Page these two links are also mirrored at http wouter.fov120.com false false.txt The FALSE Programming Language Manual http wouter.fov120.com false The FALSE Programming Language Web Page removed from de wiki in March, and again ...   more details



  1. Fg (Unix)

    lowercase fg is a job control Unix job control command in Unix and Unix like operating systems that resumes execution of a suspended Process computing process by bringing it to the foreground and thus redirecting its standard input and standard output output streams to the user s computer terminal terminal . ref name man http www.computerhope.com unix ufg.htm fg man page ref fg is required to be included in an operating system in order for it to be POSIX compliant. ref name POSIX commands http manuals.fujitsu siemens.com servers bs2 man man us posix v6 0 posix k.pdf POSIX BS2000 OSD Commands User Guide ref See also bg Unix bg , the complementary command that sends a process to the background SIGCONT References Reflist External links man cu fg SUS run jobs in the foreground Unix commands Category Standard Unix programs Category Unix SUS2008 utilities Unix stub ca Fg Unix el Fg Unix fr Fg Unix pl Fg Unix zh Fg Unix ...   more details



  1. Pg (Unix)

    lowercase Image Pg Unix screenshot.png thumbnail Example output of the tt pg tt command in xterm . pg is a terminal pager program on Unix and Unix like systems for viewing text file s. It can also be used to page through the output of a command via a pipe Unix pipe . pg uses an interface similar to vi , but commands are different. ref http www.computerhope.com unix upg.htm Linux Unix pg command ref more command more , and less Unix less are more commonly used paging programs. See also less Unix less more command more References reflist Unix commands unix stub Category Terminal pagers ...   more details



  1. Id (Unix)

    lowercase In computer software , tt id tt is a program in Unix like operating system s that prints the User identifier Unix user or Group identifier Unix group identifier of the account by which the program is executed an example of the command tt id tt as executed by user tt alice tt source lang bash alice darkstar id uid 1016 alice gid 100 users groups 100 users source The superuser root account has a UID of 0 source lang bash root darkstar id uid 0 root gid 0 root groups 0 root source The tt whoami tt utility has been obsoleted by the tt id tt utility and displays a user s ID as a name source lang bash alice darkstar whoami alice alice darkstar id un Where u refers to user and n refers to name alice source See also List of Unix programs User identifier Unix UID Group identifier Unix GID tt Who Unix who tt tt uname tt References man cu id SUS return user identity Unix commands Category Unix user management and support related utilities Category Unix SUS2008 utilities cs Id Unix el Id Unix fr Id Unix hu Id Unix ja Id UNIX pl Id Unix pt Id Unix ru Id uk Id ...   more details



  1. Install (Unix)

    lowercase Unreferenced date March 2007 The tt install tt command is a standard Unix program used to copy Computer file files and set file permissions . Category Standard Unix programs Unix stub ...   more details



  1. Bg (Unix)

    lowercase bg is a job control Unix job control command in Unix and Unix like operating systems that resumes execution of a suspended Process computing process without bringing it to the foreground ref name bg man page http pwet.fr man linux commandes posix bg bg man page ref the resumed process continues to execute in the background without receiving user input from the Computer terminal terminal . bg is required to be included in an operating system in order for it to be POSIX compliant. ref name POSIX commands http manuals.fujitsu siemens.com servers bs2 man man us posix v6 0 posix k.pdf POSIX BS2000 OSD Commands User Guide ref See also fg Unix fg , the complementary command that brings a process to the foreground References Reflist Unix commands Category Standard Unix programs Category Unix SUS2008 utilities unix stub ca Bg Unix el Bg Unix fr Bg Unix zh Bg Unix ...   more details



  1. W (Unix)

    Unreferenced auto yes date December 2009 Lowercase The command w on many Unix like operating system s provides a quick summary of every user logged into a computer, what that user is currently doing, and what Load computing load all the activity is imposing on the computer itself. The command is a one command combination of several other Unix programs tt Who Unix who tt , tt uptime tt , and tt Ps Unix ps a tt . Sample output this may vary between systems source lang text w 11 12am up 608 day s , 19 56, 6 users, load average 0.36, 0.36, 0.37 User tty login idle what smithj pts 5 8 52am w jonesm pts 23 20Apr06 28 bash harry pts 18 9 01am 9 pine peterb pts 19 21Apr06 emacs nw html index.html janetmcq pts 8 10 12am 3days csh singh pts 12 16Apr06 5 29 usr bin perl w perl test program.pl source External links man 1 w Unix commands Category Unix user management and support related utilities Unix stub cs W Unix el W Unix es W Unix ko W hu W Unix ja W UNIX pl W Unix pt W Unix ru W UNIX zh W Unix ...   more details



  1. Test (Unix)

    Cleanup rewrite date May 2009 lowercase title test Unix test is a command in Unix that evaluates conditional expressions. Syntax test expression or expression Description The test command evaluates the expression parameter. In some shells such as FreeBSD sh 1 , it is actually a shell builtin, even though external version still exists. In the second form of the command, the brackets must be surrounded by blank spaces. You must test explicitly for file names in the C shell. File name substitution globbing causes the shell script to exit. Functions and operators are treated as separate parameters by the test command. The expression parameter refers to a statement that is checked for a true or false condition. Functions The following functions are used to construct this parameter e FileName FileName exists. Note All remaining functions return true if the object file or string exists, and the condition specified is true. b Filename Returns a True exit value if the specified FileName exists and is a block special file. c FileName FileName is a character special file . d FileName FileName is a directory file systems directory . f FileName FileName is a regular file. g FileName FileName s Set Group identifier Unix Group ID bit is set. h FileName FileName is a symbolic link . k FileName FileName s sticky bit is set. L FileName FileName is a symbolic link . p FileName FileName is a named ... terminal terminal . u FileName FileName s Set User identifier Unix User ID bit is set. w FileName FileName ... The Expression parameter is true. 1 The Expression parameter is false or missing. 1 An error occurred ... entered on the command line that starts this shell procedure. See also List of Unix utilities ... GNU tt Bash Unix shell bash tt C shell tt tcsh tt The tt find tt program. References nowiki See http ... and ref tags, and the template below. nowiki references Unix commands Category Unix SUS2008 utilities Category Conditional constructs fr Test Unix hu Test Unix pl Test Unix ru Test uk Test ...   more details



  1. Book:Unix

    saved book title Unix subtitle cover image Poundexclam.svg cover color Black Unix Introduction Unix Unix wars Historically significant corporations AT&T Bell Labs Hewlett Packard IBM Novell SCO Group Sun Microsystems Unix standards and organizations The Open Group X Open POSIX Single UNIX Specification Unix operating systems Berkeley Software Distribution 1977 Berkeley Software Distribution Version 7 Unix 1979 Version 7 Unix SunOS 1982 SunOS UNIX System V 1983 UNIX System V HP UX 1984 HP UX IBM AIX 1986 AIX IRIX 1988 IRIX SCO OpenServer 1989 SCO OpenServer Solaris operating system 1992 Solaris Tru64 UNIX 1992 Tru64 UNIX UnixWare 1992 UnixWare OS X 2001 Mac OS X Unix like operating environments Unix like Cygwin DragonFly BSD FreeBSD GNU Interix Linux NetBSD NeXTSTEP OpenBSD OpenSolaris Plan 9 from Bell Labs Legal battles and controversies SCO Linux controversies SCO v. IBM SCO v. Novell SCO and SGI Red Hat v. SCO USL v. BSDi Category Wikipedia books on computing ...   more details



  1. True and false

    lowercase title About the Unix commands the book True and False Heresy and Common Sense for the Actor In Unix like operating system s, tt true tt and tt false tt are commands whose only function is to always return the value 0 or 1. Usage The exit status of a command is often used to indicate success zero status or failure non zero of the command. The true and false commands represent the logical value of command success, because true returns 0, and false returns 1. The commands are usually employed in Conditional programming conditional statement s and program loop loops of shell script s. For example, the following shell script repeats the echo hello loop until interrupted source lang bash while true do echo hello done source The commands can be used to ignore the success or failure of a sequence of other commands, as in the example source lang bash make && false source Setting a user s login shell to tt false tt , in etc passwd, effectively denies them access to an interactive shell, but their account may still be valid for other services, such as FTP . Although tt sbin nologin tt ... GNU Coreutils reference http www.gnu.org software coreutils manual html node false invocation.html false 1 Do nothing, unsuccessfully GNU Coreutils reference http man.freebsd.org true true 1 Return true value FreeBSD manual page http man.freebsd.org false false 1 Return false value FreeBSD manual page Unix commands Category Standard Unix programs Category Unix SUS2008 utilities cs True a false Unix de True Unix el True false fr True Unix hu True Unix ja True UNIX pl True Unix ru True uk True Unix vi True v false Unix ... For example, from bashbug , the bug reporting script for Bash Unix shell Bash TMPDIR tmp EDITOR DEFEDITOR USER LOGNAME whoami See also List of Unix programs Two valued logic IEFBR14 References Reflist External links man cu true SUS return true value man cu false SUS return false value Manual pages ...   more details



  1. Wollongong Unix

    A port of Version 6 Unix to the Interdata 7 32 was completed by Richard Miller and Ross Nealon at Wollongong University , Australia , during 1976 1977. This project was supervised by professor Juris Reinfelds . The resulting system was called Wollongong Interdata UNIX, Level 6 . This distribution also included utilities developed at Wollongong, and later releases had features of V7, notably its C programming language C compiler . Wollongong Unix was the first ever port to a platform other than the PDP series of computers, proving that portable operating systems were indeed feasible, and that C was the language in which to write them. In 1980, this version was licensed to The Wollongong Group in Palo Alto that published it as Edition 7. See also Version 7 Unix Ancient UNIX External links http minnie.tuhs.org UnixTree V6 V6 source code http minnie.tuhs.org UnixTree Interdata v6 Wollongong Interdata UNIX source code http www.graphviz.org Gallery directed unix.svg a family tree of Unix, which includes Wollongong Unix Unix like Category Unix variants Category Discontinued operating systems Unix stub ...   more details



  1. Filter (Unix)

    Unreferenced date December 2009 In Unix and Unix like operating systems, a filter is a program that gets most of its data from its standard input the main input stream and writes its main results to its standard output the main output stream . Unix filters are often used as elements of pipeline Unix pipeline s. The pipe operator on a command line signifies that the main output of the command to the left is passed as main input to the command on the right. The classic filter would be grep , which at it simplest prints to its output any lines containing a character string. Here s an example source lang bash cut d f 1 etc passwd grep foo source This finds all registered users that have foo as part of their username by using the Cut Unix cut command to take the first field username of each line of the Unix system password file and passing them all as input to grep, which searches its input for lines containing the character string foo and prints them on its output. Here is a Perl equivalent to the above, which prints the whole line from the passwd file source lang bash perl ne print if m foo etc passwd source Or, to print only the username, without the rest of the line source lang bash perl ane shift F print n if foo F etc passwd source Common Unix filter programs are Cat Unix cat , cut Unix cut , grep , head Unix head , Sort Unix sort , uniq and tail Unix tail . Programs like awk and sed can be used to build quite complex filters because they are fully programmable. List of Unix filter programs awk programming language awk cat Unix cat comm Unix comm cut Unix cut Expand Unix expand compress Fold Unix fold grep head Unix head Nl Unix nl perl Pr Unix pr sed UNIX shell sh Sort Unix sort Split Unix split Strings Unix strings tail Unix tail Tac Unix tac Tee Unix tee tr program tr uniq Wc Unix wc See also Filter software Unix commands Category Unix da Filter program it Filtro Unix ja pt Filtro Unix ...   more details



  1. CB UNIX

    Bell Unix Columbus UNIX or CB UNIX was, according to Marc Rochkind , ref cite book last Rochkind first Marc title Advanced UNIX Programming publisher Prentice Hall year 1985 pages 156 157 isbn 0 13 011800 1 ref a variant of the UNIX operating system internal to Bell Labs . It was developed at the Columbus, Ohio Columbus , Ohio branch and was little known outside the company. CB UNIX was developed to address deficiencies inherent in Research Unix , notably the lack of interprocess communication and file locking , considered essential for a database management system . Several Bell System operation support system products were based on CB UNIX such as Switching Control Center System . The primary innovations were power fail restart, line disciplines, terminal types, and IPC features similar to System V s messages and shared memory . ref cite newsgroup title UNIX history author Dale Dejager date 1984 01 16 newsgroup net.unix url http groups.google.com group net.unix msg b80689d4b3bff13f?dmode source ref Image CB Unix Manuals.jpg thumb left 200px Volume 1 and Volume 2 of the UNIX Programmers Manual CB Version References reflist Unix like Unix stub DEFAULTSORT Cb Unix Category Bell Labs Unices Category Discontinued operating systems ...   more details



  1. The Unix System

    The Unix System ISBN 0 201 13791 7 is a book by Stephen R. Bourne it was the first widely available general introduction to the Unix operating system . It included some historical material on Unix, as well as material on using the system, editing, the software tools concept, C programming using the Unix API , data management with the shell and awk , and typesetting with troff . DEFAULTSORT Unix System Category Computer books compu book stub ...   more details



  1. Mail (Unix)

    lowercase mail Unix mail is a command line email client for Unix and Unix like operating system s. Example usage syntaxhighlight lang bash mail s You ve got mail c cc.rider example.org somebody example.com anotherbody example.net syntaxhighlight This sends a message with the subject You ve got mail to two recipients, somebody example.com and anotherbody example.net, and CCs copies a third, cc.rider example.org. The message will be typed after the command is entered and will be ended with Control D. Any Unix command sequence that generates text can be used to send a message in one line. For example syntaxhighlight lang bash echo Some message mail s meeting today somebody example.com syntaxhighlight This is especially useful for having a system report its status automatically through email. See also Cleancode email mailx External links http mailutils.org manual html section mail.html tt mail tt at GNU Mailutils manual Unix commands Category Unix internet software Unix stub fr Mail Unix pl Mail Unix ru Mail zh Mail Unix ...   more details



  1. Unix/NS

    Multiple issues unreferenced February 2007 orphan February 2009 Infobox OS name Unix NS screenshot caption developer NCR Corporation NCR family Unix source model Closed source kernel type Monolithic kernel license Proprietary software Proprietary Unix NS the NCR Corporation NCR 3700 Operating System is based on the Unix SVR4 . It contains significant extensions for massively parallel systems, in particular Distributed Memory DBMSs. The extensions include the concepts of virtual processor and virtual disk, message and global synchronization system, segment system, and globally distributed objects. When compared to other parallel UNIX operating systems like Mach or ChorusOS Chorus , Unix NS has a more powerful communication and message addressing paradigm, and richer process group management and global synchronization mechanism. Unix like DEFAULTSORT Unix Ns Category UNIX System V de Unix NS ...   more details



  1. Clear (Unix)

    lowercase title clear Unix Image Clear gnulinux.gif thumb Clear being used on GNU Linux under uxterm code clear do not subst template code tag breaks popups is a standard Unix computer operating system command which is used to clear the screen. Depending on the system, tt clear tt uses the terminfo or termcap database, as well as looking into the environment for the terminal type in order to deduce how to clear the screen. The Unix command tt clear tt takes no arguments and is roughly analogous to the MS DOS command tt Cls computing cls tt . See also List of Unix programs External links http invisible island.net ncurses man clear.1.html The manual tt man tt page for tt clear tt unix commands Unix stub Category Unix software el Clear Unix fa Clear fr Clear Unix hu Clear Unix zh Clear ...   more details



  1. Ancient UNIX

    Ancient UNIX is a term coined by Santa Cruz Operation , Citation needed date October 2009 to describe early releases of the Unix code base released prior to Unix System III , particularly the Research Unix releases prior to and including Version 7 the base for UNIX 32V as well as later developments of AT&T Unix . After the publication of the Lions Commentary on UNIX 6th Edition, with Source Code Lions book , work was undertaken to release the earlier versions of the codebase. SCO first released the code under a limited educational license. Citation needed date October 2009 Later, in January 2002, Caldera International now SCO Group relicensed but has not made available several versions under the four clause BSD license , namely ref cite web url http www.lemis.com grog UNIX title UNIX is free ... February 19, 2009 title Dear Unix enthusiasts, last Broderick first Bill date January 23, 2002 publisher Caldera ref UNIX 32V Research Unix early versions only Version 1 Unix Version 2 Unix Version 3 Unix Version 4 Unix Version 5 Unix Version 6 Unix Version 7 Unix So far there has been no widespread use of the code, but it can be used on emulator systems, and Version 5 Unix has been made to run ... www.kernelthread.com publications gbaunix title UNIX on the Game Boy Advance last Singh first Amit date August 2004 accessdate 2009 10 22 ref As an example of how relicensing the old Unix code bases has affected the modern computing community, the BSD vi text editor was based on code from the ed UNIX ... vi has been adapted for modern Unix like operating systems. ref cite web url http ex vi.sourceforge.net title The Traditional Vi ref References reflist External links http www.tuhs.org The Unix Heritage Society , TUHS a website dedicated to the preservation and maintenance of historical UNIX ... unix 1st Unix First Edition Manual Pages Unix like DEFAULTSORT Ancient Unix Systems Category Bell Labs Unices Category Discontinued operating systems Unix stub ja Ancient UNIX ...   more details



  1. Research Unix

    Inappropriate tone date December 2007 Bell Unix Research Unix is a term used to refer to versions of the Unix ... to as Department 1127 . History The term Research Unix first appeared in the Bell System Technical ... Labs such as PWB UNIX and Multi Environment Real Time MERT whose code base had diverged from the primary CSRC version. However, that term was little used until Version 8 Unix , but has been retcon retroactively ... called simply UNIX in caps or the UNIX Time Sharing System. Because both the early versions and the last ... Unix versions are often referred to by the edition of the Unix manual manual that describes them. So, the first Research Unix would be the First Edition, and the last the Tenth Edition. Another common way of referring to them is Version x or V x Unix, where x is the manual edition. All modern editions of Unix excepting implementations from scratch like Coherent operating system Coherent , Minix , and Linux , usually referred to as Unix like derive from the 7th Edition. Versions class wikitable Manual Edition Release date Description 1st Edition Nov. 3, 1971 First edition of the Unix manual, based on the version that ran on the PDP 11 at the time. Unix was actually 2 years old at the time and had ... the C programming language C programming language and Unix pipe pipes total number of installations was 16. 4th Edition Nov. 1973 First Unix written in C programming language C . It also introduced Group identifier Unix groups . Number of installations was listed as above 20 . The manual was formatted ... above 50 . Version 6 Unix 6th Edition May 1975 First Unix to see widespread distribution outside ... UNIX, a cut down v6 for the low end PDP 11 10. Version 7 Unix 7th Edition Jan. 1979 The ancestor of all modern UNIX systems and the last release of Research Unix to see widespread external distributions. Merged together most of the utilities of PWB UNIX with an extensively modified kernel with almost 80 more lines of code than V6. In February, a port called UNIX 32V 32V was made to DEC s VAX hardware ...   more details



  1. Head (Unix)

    lowercase head is a Computer program program on Unix and Unix like systems used to display the first few lines of a text Computer file file or pipe computing pipe d data. The command syntax is head options < file name> By default, tt head tt will print the first 10 lines of its input to the standard output . The number of lines printed may be changed with a command line option. The following example shows the first 20 lines of filename head n 20 filename This displays the first 5 lines of all files starting with foo head n 5 foo Some versions omit the n and just let you say 5. Flags c x number of bytes Copy first x number of bytes. Other Many early versions of Unix did not have this command, and so documentation and books had sed do this job sed 5q foo This says to print every line implicit , and quit after the fifth. See also tail Unix tail , dd Unix dd List of Unix programs External links http www.gnu.org software coreutils manual html node head invocation.html head manual page from GNU coreutils . http www.freebsd.org cgi man.cgi?query head&apropos 0&sektion 0&manpath FreeBSD 5.3 RELEASE and Ports&format html FreeBSD documentation for head Unix commands Category Unix text processing utilities Category Unix SUS2008 utilities cs Head de Head Unix el Head Unix es Head Unix fr Head Unix ko Head it Head hu Head Unix ja Head pl Head Unix pt Head ro Head Unix ru Head Unix uk Head tr Head Unix ...   more details



  1. Fc (Unix)

    lowercase code fc do not subst template code tag breaks popups is a standard program on Unix that lists or edits and reexecutes, commands previously entered to an interactive shell. fc is a Shell builtin built in command in the Bash Unix shell bash shell help fc will show usage information. Examples Features History See also List of Unix programs References Solaris 10 man page for fc command External links man cu fc SUS process the command history list unix commands Category Standard Unix programs Category Unix SUS2008 utilities el Fc Unix ...   more details




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