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Topic: Bourne Again shell


  
  Unix Shell Books : Learn Unix Shell with books, documentation, e-books, and technical books
Based on the Korn shell, it is an essential reference for administrators on how to program their system, and it is also beneficial for those new to Unix who need to know how to automate their system.
Learning the Korn Shell is the key to gaining control of the Korn shell and becoming adept at using it as an interactive command and scripting language.
Covers shell syntax, portability on different UNIX systems, using shell scripts to catch or ignore signals, executing commands using the remote shell command, and using the shell's redirection syntaxes.
www.bigwebmaster.com /Unix_Shell/Books   (1359 words)

  
  Unix shell - Wikipedia, the free encyclopedia
It is called a "shell" because it hides the details of the underlying operating system behind the shell's interface (contrast "kernel", which refers to the lowest-level, or 'inner-most' component of an operating system).
The Bourne shell was the shell used in early versions of Unix and became a de facto standard; every Unix-like system has the equivalent of the Bourne shell.
POSIX specifies the standard shell as a strict subset of the Korn shell.
en.wikipedia.org /wiki/Unix_shell   (839 words)

  
 Bash - Wikipedia, the free encyclopedia
Its name is an acronym for Bourne-Again SHell — a pun (Bourne again / born again) on the Bourne shell (sh) - an early, important Unix shell written by Stephen Bourne and distributed with Version 7 Unix, circa 1978.
The vast majority of Bourne shell scripts can be executed without alteration by bash, with the exception of those Bourne shell scripts that reference a Bourne special variable or use a Bourne built in command.
The only Unix command shells currently capable of this are the Korn Shell and the Z shell.
en.wikipedia.org /wiki/Bourne-Again_shell   (1266 words)

  
 Bash - Wikipedia, the free encyclopedia   (Site not responding. Last check: 2007-10-02)
Its name is an acronym for Bourne-again shell — a pun on the Bourne shell sh, which was the original Unix shell.
The original Bourne shell was written by Stephen Bourne.
Bash is the default shell on most GNU/Linux systems as well as on Mac OS X Panther, and it can be run on most Unix-like operating systems.
www.encyclopedia-online.info /Bourne-Again_shell   (246 words)

  
 Bash Features - Bourne Shell Style Features
All of the Bourne shell builtin commands are available in Bash, and the rules for evaluation and quoting are taken from the Posix 1003.2 specification for the `standard' Unix shell.
Bourne Shell Builtins: Builtin commands inherited from the Bourne Shell.
Shell functions are a way to group commands for later execution using a single name for the group.
www.math.utah.edu /docs/info/features_1.html   (1016 words)

  
 Bourne-Again shell
Bash is a Unix command shell written for the GNU project.
Its name is an acronym for "Bourne-Again SHell": a pun on the Bourne shell sh, which was the original Unix shell.
Bash is the default shell on most GNU/Linux systems, and it can be run on most Unix-like operating systems.
www.ebroadcast.com.au /lookup/encyclopedia/ba/Bash.html   (164 words)

  
 bash GNU Bourne-Again SHell
An interactive shell is one started without non-option argu- ments and without the -c option whose standard input and error are both connected to terminals (as determined by isatty(3)), or one started with the -i option.
Shell Function Definitions A shell function is an object that is called like a simple command and executes a compound command with a new set of positional parameters.
Command substitution, commands grouped with parentheses, and asynchronous commands are invoked in a subshell environment that is a duplicate of the shell environment, except that traps caught by the shell are reset to the values that the shell inherited from its parent at invocation.
www.unb.ca /csd/documentation/UNIX/tips/bash.html   (18353 words)

  
 Advantages of the Bourne Again SHell
Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh).
A login shell means that you got the shell after authenticating to the system, usually by giving your user name and password.
An interactive shell generally reads from, and writes to, a user's terminal: input and output are connected to a terminal.
www.tldp.org /LDP/Bash-Beginners-Guide/html/sect_01_02.html   (1180 words)

  
 The Linux Cookbook: Tips and Techniques for Everyday Use - The Shell
The shell environment is the most fundamental way to interact with the system -- you are said to be "in" a shell from the very moment you've successfully logged in to the system.
The shell moves text in designated "streams." The standard output is where the shell streams the text output of commands -- the screen on your terminal, by default.
This redirects the standard output of the command apropos bash shell shells to the standard input of the command less, which displays it on the screen.
www.dsl.org /cookbook/cookbook_5.html#SEC69   (4116 words)

  
 Bourne shell - a definition from Whatis.com
The Bourne shell is the original Unix shell (command execution program, often called a command interpreter) that was developed at AT&T. Named for its developer, Stephen Bourne, the Bourne shell is also known by its program name, sh.
Bourne Again Shell (bash) is the free version of the Bourne shell distributed with Linux systems.
Along with the Korn shell and the C shell, the Bourne shell remains among the three most widely used and is included with all UNIX systems.
whatis.techtarget.com /definition/0,,sid9_gci214635,00.html   (331 words)

  
 The Bourne Again Shell > Chapter Summary   (Site not responding. Last check: 2007-10-02)
Assuming that the file holding a shell script is in the working directory, there are three basic ways to execute the shell script from the command line.
When you give it a command, the shell forks a new (child) process to execute the command, unless the command is built into the shell (page 138).
A shell function is a series of commands that, unlike a shell script, are parsed prior to being stored in memory so that they run faster than shell scripts.
www.phptr.com /articles/article.asp?p=441605&seqNum=10   (937 words)

  
 The Bourne Again Shell > Background
You can also write shell scripts that do your bidding, from a one-line script that stores a long, complex command to a longer script that runs a set of reports, prints them, and mails you a reminder when the job is done.
The Bourne Again Shell is based on the Bourne Shell (the early UNIX shell; this book refers to it as the original Bourne Shell to avoid confusion), which was written by Steve Bourne of ATandT's Bell Laboratories.
Some features of the Bourne Again Shell, such as command aliases and command line editing, are based on similar features from the Korn Shell.
www.informit.com /articles/article.asp?p=441605&rl=1   (781 words)

  
 bash(1) - GNU Bourne-Again SHell
At shell startup, set to the absolute pathname used to invoke the shell or shell script being executed as passed in the environment or argument list.
The command currently being executed or about to be executed, unless the shell is executing a command as the result of a trap, in which case it is the command executing at the time of the trap.
In an interactive shell, the value is interpreted as the number of seconds to wait for input after issuing the primary prompt.
www.gsp.com /cgi-bin/man.cgi?section=1&topic=bash   (10839 words)

  
 sh, resh, ksh, bash -- POSIX-compliant (Korn/Bourne-Again) shell and command interpreter   (Site not responding. Last check: 2007-10-02)
This means that the current shell invokes a second shell to execute the commands.
Shell reserved words are recognized only when they are the unquoted first token of a command.
Since the shell takes care of the redirection, these constructs are not passed to the command itself.
www.mkssoftware.com /docs/man1/sh.1.asp   (7994 words)

  
 Bourne Again SHell   (Site not responding. Last check: 2007-10-02)
The Bourne Again SHell (bash) is a public domain shell written by the Free Software Foundation under their GNU initiative.
It is widely used within the academic community and is the default shell on most versions of Linux.
If you use the Bourne shell for shell programming you might consider using bash as your shell enviroment.
sunsite.utk.edu /UNIX-help/bash.html   (238 words)

  
 UNIX Shell Programming
For shell script experts one of the things to consider is whether to use the Bourne shell (or ksh or bash), the C shell, or a richer scripting language like perl or python.
Historically, people have been biased toward the Bourne shell over the C shell because in the early days the C shell was buggy.
If you are interested also in learning about programming in the C shell I also have a comparison between features of the C shell and Bourne shell.
www.esscc.uq.edu.au /~ksteube/Bshell   (4286 words)

  
 Choosing a shell: the case for bash
Bourne is the standard baseline shell for programming purposes.
It is necessary, then, to know the Bourne shell for programming purposes.
The question then becomes whether it makes sense to use an interactive shell which is compatible with Bourne-ese or one which uses an entirely different language.
www.cs.indiana.edu /docproject/shells/bash.html   (282 words)

  
 How to write a shell script - Linux Research Project
A Shell script is a program interpreted and executed by the shell, which is essentially a command line interpretor.
Shell scripts are simple text files created with an editor.
A good shell script should verify that the arguments sup- plied (if any) are correct.
linux.dbw.org /shellscript_howto.html   (2105 words)

  
 The Bourne Again Shell (bash)
Bash is the shell, or command language interpreter, that will appear in the GNU operating system (if it ever will be released).
The linux operating system uses the bash shell as its default shell.
This shell is widely used within the academic community.
heimhardt.com /htdocs/bash.html   (238 words)

  
 Bourne Again SHell (bash)   (Site not responding. Last check: 2007-10-02)
This is a public domain shell written by the Free Software Foundation under their GNU initiative.
This shell is widely used within the academic commnity.
If you use the Bourne shell (sh) for shell programming consider using bash as your complete shell environment.
theory.uwinnipeg.ca /UNIXhelp/shell/oview2.5.html   (86 words)

  
 The GNU Bourne-Again Shell
Bash is the GNU Project's Bourne Again SHell, a complete implementation of the IEEE POSIX and Open Group shell specification with interactive command line editing, job control on architectures that support it, csh-like features such as history substitution and brace expansion, and a slew of other features.
For more information on the features of Bash that are new to this type of shell, see the reference manual.
Bash is the standard shell on GNU/Linux systems.
tiswww.case.edu /php/chet/bash/bashtop.html   (822 words)

  
 Chapter 8 - The Bourne Again Shell   (Site not responding. Last check: 2007-10-02)
Braces are required around list variables to distinguish the variable from other shell operators or text that is adjacent to the variable specification, thus preventing the shell from misinterpret the meaning.
Yes, Bash is a superset of the Bourne Shell.
This script will run much faster than a version written for another shell because of the option to use internal arithmetic (if you had to rename a file to b.txt.27, you would execute expr 26 times before the command would complete!).
www.prenhall.com /glass_ables/content/chapter08.html   (380 words)

  
 Michigan Engineering | Introduction to Shell Scripting   (Site not responding. Last check: 2007-10-02)
Shell scripting is a powerful way to interact with the Linux environment.
By writing shell scripts, you can automate various command line tasks, customize your working environment, and interact natively with the operating system.
These involve setting the file as an executable, making sure that the shell interpreter is correctly identified, and that file permissions are set correctly.
www.engin.umich.edu /caen/technotes/shellscripts   (673 words)

  
 Bourne-Again SHell (BASH) Question - Neowin.net
An environment is a collection of concepts that express the things a computer system does in terms designed to be understandable and coherent, and a look and feel that is comfortable.
Unix shells present you with such concepts as files, directories, and standard input and output, while Unix itself gives you tools to work with these, such as file manipulation commands, text editors, and print queues.
No matter whether you log in to a super-duper latest-thing X desktop or with a Wyse 30 over a slow modem connection, you will most likely at some point be using the shell.
www.neowin.net /forum/index.php?showtopic=330300   (664 words)

  
 Bourne again shell
Learning the bash shell, by Cameron Newham and Bill Rosenblatt, Published by O’Reilly, ISBN 1-56592-347-2
bourne shell provides us with a number of flow control constructs
is not standard bourne shell so beware of using it
floppsie.comp.glam.ac.uk /Glamorgan/gaius/scripting/2.html   (583 words)

  
 Slackit.org - Slackware Linux Essentials - La Shell
In un ambiente a linea di comando, l'interfaccia utente e' fornita da una "shell", che interpreta comandi e piu' generalmente rende il tutto adoperabile.
Molte shell hanno le variabili d'ambiente (altrimenti non sarebbero molto utili).
In questo capitolo e' stato discusso di utenti, shell, linea di comando, e dei terminali virtuali.
slackware.it /book/slackbook/cap8/otto.html   (1864 words)

  
 Again - FOXNews.com - White House Spokesman Tony Snow Has Cancer Again
Bash is the GNU Project's Bourne Again SHell, a complete implementation of the IEEE POSIX and Open Group shell specification with interactive command line
So, déjà vu all over again means the second time you've seen something since you Nintendo has failed once again to get decent 3rd party exclusives.
Time and time again, the industry has shown that it will not reject broken security safeguards until attacks are actually demonstrated in the real world.
xn--87xz66d.com /vvvl/again.html   (974 words)

  
 RPM resource /bin/sh
The GNU Bourne Again shell (bash) version 3.1.
The GNU Bourne Again shell (bash) version 3.0.
The GNU Bourne Again shell (bash) version 2.05b.
rpmfind.net /linux/rpm2html/search.php?query=/bin/sh   (347 words)

  
 Bourne Shell Definition
(command execution program, often called a command interpreter) that was developed at AT&T. Named for its developer, Stephen Bourne, the Bourne shell is also known by its program name, sh.
Zsh was developed by Paul Falstad as a replacement for both the Bourne and
Bourne Shell definition sponsored by SearchOpenSource.com, powered by WhatIs.com
www.bitpipe.com /tlist/Bourne-Shell.html   (287 words)

  
 Again - Techdirt: Appeals Court Tells Minnesota, Yet Again, That It Cannot
A humorous, slightly twisted comic strip into the lives of some college students and friends, struggling to survive, including with the opposite sex.
The Eden Again Project was begun in 2001 by a group of Iraqi expatriates alarmed at the loss of their beloved marshlands.
Consequently, most Christian denominations hold that a person must be born again in some sense in order to be a Christian, and thus that all who are true
xn--mdyy35c.com /xznt/again.html   (1043 words)

  
 pkgsrc.se | The NetBSD package collection
Tiny shell that only permits scp and sftp
Unix shell embedded into Scheme, with access to all Posix calls
This site is operated by www.netbsd.se, Contact Disclaimer
pkgsrc.se /shells   (55 words)

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