NationMaster - Encyclopedia: Ex (text editor)

ex, short for EXtended, is a line editor for Unix systems. A line editor is a text editor computer program that is oriented around lines. ... Unix (officially trademarked as UNIX) is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie, and Douglas McIlroy. ...

The original ex was an advanced version of the standard Unix editor ed, included in the Berkeley Software Distribution. ex is similar to ed, with the exception that some switches and options are modified so that they are more user-friendly. The text editor ed was the original standard on the Unix operating system. ... Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is the Unix derivative distributed by the University of California, Berkeley, starting in the 1970s. ... User Friendly is an online daily comic strip about the staff of a small, fictional internet service provider, Columbia Internet. ...

ex was eventually given a screen oriented visual interface (adding to its command line oriented operation), thereby becoming the vi text editor. In recent times, ex is implemented as a personality of the vi program; most variants of vi still have an "ex mode", which is invoked using the command ex, or from within vi for one command by typing the : (colon) character. Although there is overlap between ex and vi functionality, some things can only be done with ex commands, so it remains useful when using vi. The correct title of this article is vi. ... In computer software, a mode is distinct method of operation within a computer program, in which the same user input can produce different results depending of the state of the computer. ...

The core ex commands which relate to search and replace are essential to vi. For instance, the ex command issued from vi :1,$/XXX/YYY/g replaces every instance of XXX with YYY. The 1,$ means every line in the file (a synonym for this is the percent sign). The 'g' means replace every instance on every line (if it was not specified, then only the first instance on each line would be replaced).

ex has a synonym e in HP-UX environments. Look up Synonym in Wiktionary, the free dictionary. ... HP-UX (Hewlett Packard UniX) is Hewlett-Packards proprietary implementation of the Unix operating system, based on System V (initially System III). ...

Switches

X/Open Portability Guide Issue 4 Also known as Common Applications Environment Specification Issue 4. ...

See also

Categories: Unix stubs | Text editors | Unix software This is a list of Unix programs. ... Unix (officially trademarked as UNIX) is a computer operating system originally developed in the 1960s and 1970s by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie, and Douglas McIlroy. ... A command line interface or CLI is a method of interacting with a computer by giving it lines of textual commands (that is, a sequence of characters) either from keyboard input or from a script. ... This is a list of Unix programs. ... The title given to this article is incorrect due to technical limitations. ... The chdir or cd command (change directory) in the Unix and DOS operating systems, is used to change the current working directory. ... chmod (abbreviated from change mode) is a shell command in Unix-like environments. ... chown is a Unix command used to change the recorded owner of a computer file. ... The chgrp command is used by unprivileged users on Unix-like systems to change the group associated with a file. ... cp is the command entered in a Unix shell to copy a file from one place to another, possibly on a different filesystem. ... The title given to this article is incorrect due to technical limitations. ... The title given to this article is incorrect due to technical limitations. ... file is a program originated in Unix that runs under the shell (command-line) to determine the file type heuristically instead of other simpler ways to classify it, like with file extensions, MIMEs, etc. ... The system utility fsck (for file system check or file system consistency check) is a tool for checking the consistency of a file system in the Unix system and clones thereof. ... The ln command is used on Unix-like systems to create links between files. ... LS may refer to: .ls, the Internet top-level domain for Lesotho Jet2. ... lsof is a command found in almost any Unix system that reports open files by processes of a Operating System. ... The mkdir command in the Unix operating system is used to make a new directory. ... Example output of the more command. ... ... MV can stand for: MV Mercury-vapor lamp Maldives (ISO 3166-1 alpha-2 top level domain country code) MV is the IATA code for Armenian International Airways Marthas Vineyard Merchant vessel, a class of ship used in commercial or public transportation operations. ... The title given to this article is incorrect due to technical limitations. ... The title given to this article is incorrect due to technical limitations. ... The title given to this article is incorrect due to technical limitations. ... split is a Unix utility most commonly used to split a file into one or more other files. ... touch is a program on Unix and Unix-like systems used for changing the date and timestamp on a file, but is also often used for creating an empty file. ... tree is a program on Unix and Unix-like systems. ... Anacron is a computer program written by Sean Perry for the Unix operating system. ... The at command is used to schedule commands to be executed once at a particular time in the future. ... A chroot on Unix operating systems is an operation which changes the root directory. ... The crontab command, found in Unix and Unix-like operating systems, is used to schedule commands to be executed periodically. ... Wikibooks has more about this subject: kill In Unix and Unix-like operating systems, kill is a command used to send simple messages to processes running on the system. ... nice (IPA pronunciation: ) is a command found on UNIX and other POSIX-like operating systems such as Linux. ... pgrep is a command line utility initially written for use with the Solaris 7 operating systems and then ported to GNU/Linux. ... pidof is a Linux utility that returns the process ID (PID) of a running process. ... The introduction to this article provides insufficient context for those unfamiliar with the subject matter. ... To meet Wikipedias quality standards, this article or section may require cleanup. ... sleep is an instruction for a computer that delays execution for a specified period of time. ... GNU Screen is a Free Software terminal multiplexer developed by the GNU Project. ... This article is about a Unix command. ... timex is a Unix utility tool, most commonly used in the measurement of duration of shell processes. ... In many Unix-like operating systems, the top command produces a constantly-updated list of all resident processes, listed in order of CPU usage. ... Pause for NUMBER seconds. ... env is a shell utility for Unix-like operating systems (including Linux). ... In computer networking, the Name/Finger protocol and the Finger user information protocol are simple network protocols for the exchange of human-oriented status and user information. ... In computer software, id is a program in Unix operating systems that prints the uid of the account of which the program is executed by. ... In computing, locale is a set of parameters that defines the users language, country and any special variant preferences that the user wants to see in their user interface. ... mesg is a Unix command that sets or reports the permission other users have to write to your terminal using the talk and write commands. ... passwd is a tool on most Unix and Linux systems used to change a users password. ... The Unix su (substitute user) command is used to assume the login shell of another user without logging out. ... sudo (superuser do) is a program in Unix, Linux, and similar operating systems such as Mac OS X that allows users to run programs in the guise of another user (normally in the guise of the systems superuser). ... In computer software, uname is a program in Unix operating systems that prints the name, version and other details about the running operating system. ... Uptime is a measure of the time a computer system has been up and running. ... The command w on many Unix-like operating systems provides a quick summary of every user logged into a computer, what that user is currently doing, and what load all the activity is imposing on the computer itself. ... wall is a Unix command line utility. ... who is a Unix-command which creates almost the same output as the Unix-command w; it shows you users currently logged in a system. ... Wikipedia does not yet have an article with this exact name. ... write can refer to several Unix commands. ... AWK is a general purpose computer language that is designed for processing text based data, either in files or data streams. ... cut is a Unix command which is typically used to extract a certain range of characters from a line, usually from a file. ... This article is about the computing term. ... head is a program that shows the first 10 lines by default of a file or piped data, on Unix and Unix-like systems. ... iconv is a computer program and a standardized API used to convert between different character encodings. ... join is a command in Unix-like operating systems. ... The title given to this article is incorrect due to technical limitations. ... Example output of the more command. ... nkf is a Unix computer program that converts Japanese encoding. ... Paste is a Unix utility tool which is used to join files horizontally (parallel merging), e. ... SED is a three-letter acronym that may mean: Sozialistische Einheitspartei Deutschlands, the Socialist Unity Party of Germany (German Democratic Republic) SED: Seriously Emotionally Disturbed Children/Adolescents A smoke emitting diode. ... sort is a standard Unix command line program that prints the lines of its input in sorted order. ... tail is a program on Unix and Unix-like systems used to display the last few lines of a text file or piped data. ... The title given to this article is incorrect due to technical limitations. ... uniq is a Unix utility which, when fed a text file, outputs the file with adjacent identical lines collapsed to one. ... wc (short for word count) is a command in Unix-like operating systems. ... xargs is a command of the Unix and most Unix-like operating system which eases passing command output to another command as command line arguments. ... In computing, a shell is a piece of software that provides an interface for users (command line interpreter). ... echo is a command in Unix (and by extension, its descendants, such as Linux) and MS-DOS that places a string on the terminal. ... expr is a command line Unix utility which evaluates an expression and outputs the corresponding value. ... Several programming languages implement a printf function, to output a formatted string. ... unset is a Unix shell command. ... The Common Unix Printing System (CUPS) is a modularised computer printing system for Unix-like operating systems that allows computers to act as powerful print servers. ... inetd is a daemon on many Unix systems that manages Internet services. ... Screenshot of netstat in Windows XP Professional netstat is a command-line tool that displays a list of the active network connections the computer currently has, both incoming and outgoing. ... ping in a Windows 2000 command window ping is a computer network tool used to test whether a particular host is reachable across an IP network. ... In computing, rlogin is a Unix software utility that allows users to log in on another host via a network, communicating via TCP port 513. ... tracert in action on Windows XP. traceroute, or tracepath on modern Linux systems, tracert on Windows operating system, is a TCP/IP utility which allows the user to determine the route packets take to reach a particular host. ... For the EP by Hidden in Plain View, see Find (EP) The find program is a search utility, mostly found on Unix-like platforms. ... grep is a command line utility originally written for use with the Unix operating system. ... In computer software, strings is a program in Unix-like operating systems that prints the strings found in an executable. ... The banner program displays a large ASCII art version of input text. ... bc is an arbitrary precision calculator language with syntax similar to the C programming language. ... cal is a standard program on Unix that prints an ASCII calendar of the given month or year. ... size is a command line utility originally written for use with the Unix-like operating systems. ... yes is a Unix command. ...

Switches

See also GA_googleFillSlot("encyclopedia_square");

See also