Almquist shell - Citizendia

Almquist shell
Written in	C
OS	Cross-platform
Platform	Cross-platform
Available in	English, multilingual (gettext)
Development status	Active
Genre	Unix shell
Website	http://www.in-ulm.de/~mascheck/various/ash/

The Almquist shell (also known as A Shell, ash and sh) was originally Kenneth Almquist's clone of the SVR4-variant of the Bourne shell; it is a fast, small, POSIX-compatible Unix shell designed to replace the Bourne shell in later BSD distributions. A programming language is an Artificial language that can be used to write programs which control the behavior of a machine particularly a Computer. tags please moot on the talk page first! --> In Computing, C is a general-purpose cross-platform block structured An operating system (commonly abbreviated OS and O/S) is the software component of a Computer system that is responsible for the management and coordination In computing cross-platform (also known as multi-platform) is a term used to refer to Computer software or computing methods and concepts that are implemented In Computing, a platform describes some sort of Hardware architecture or Software framework (including Application frameworks, that allows In computing cross-platform (also known as multi-platform) is a term used to refer to Computer software or computing methods and concepts that are implemented A language is a dynamic set of visual auditory or tactile Symbols of Communication and the elements used to manipulate them Computer software can be organized into categories based on common function type or field of use A Unix shell, is a command line shell that provides the traditional User interface for the Unix Operating system and for Unix-like A website (alternatively web site or Web site, a back-construction from the Proper noun World Wide Web) is a collection of Web pages Unix System V, commonly abbreviated SysV (and usually pronounced though rarely written as System 5 was one of the versions of the Unix Operating system The Bourne shell, or sh, was the default Unix shell of Unix Version 7, and replaced the Thompson shell, whose executable file had the same POSIX (ˈpɒzɪks or "Portable Operating System Interface" is the collective name of a family of related standards specified by the IEEE to define A Unix shell, is a command line shell that provides the traditional User interface for the Unix Operating system and for Unix-like By intention it did not feature line editing or command history mechanisms originally, because Almquist felt that such should be moved into the terminal driver. Command history is a common feature in operating system shells (such as Korn shell, Bash, Cmd A computer terminal is an electronic or electromechanical hardware device that is used for entering data into and displaying data from a Computer or a Computing In computing a device driver or software driver is a Computer program allowing higher-level computer programs to interact with a Hardware device Current variants have emacs and vi modes. Emacs is a class of feature-rich Text editors usually characterized by their extensibility vi is a screen-oriented Text editor written by Bill Joy in 1976 for an early BSD release

Derivatives of ash are installed as the default shell (/bin/sh) on FreeBSD, NetBSD, DragonFly BSD and Minix. FreeBSD is a Unix-like free Operating system descended from AT&T UNIX via the Berkeley Software Distribution (BSD branch through NetBSD is a freely redistributable Open source version of the Unix -derivative Berkeley Software Distribution (BSD Computer Operating DragonFly BSD is a free Unix-like operating system created as a fork of FreeBSD 4 MINIX is a Unix-like computer Operating system based on a Microkernel architecture. ash is also fairly popular in embedded Linux systems; its code was incorporated into the BusyBox catch-all executable often employed in this area. Embedded Linux is the use of a Linux Operating system in Embedded computer systems such as Mobile phones Personal digital assistants BusyBox is a Software application which provides many standard Unix tools much like the larger (but more capable GNU Core Utilities. Debian's version of ash is known as Debian Almquist Shell (dash). Debian ( pronounced) is a computer Operating system composed entirely of Free and open source software. D ebian A lmquist sh ell ( dash) is a POSIX -compliant Unix shell, much smaller than Bash.

Some Linux distributions also use a derivative of ash as the default shell, although Bash (Bourne Again Shell) is more popular. Linux (commonly pronounced ˈlɪnəks Bash is a Free software Unix shell written for the GNU Project. ubuntu symlinks /bin/sh to the dash shell for faster script execution, but keeps Bash as the default login shell; Debian will be doing so as of the current testing release, Lenny. Ubuntu Kubuntu Edubuntu Xubuntu Gobuntu --> Ubuntu In Computing, a symbolic link (also symlink or soft link) is a special type of file that contains a reference to another Bash is a Free software Unix shell written for the GNU Project.

The following is extracted from the ash package information from Slackware:

ash (Kenneth Almquist's ash shell)

A lightweight (92K) Bourne compatible shell. Slackware is an Operating system created by Patrick Volkerding of Slackware Linux Inc Great for machines with low memory, but does not provide all the extras of shells like bash, tcsh, and zsh. tcsh ( pronounced /tiː 'siː ʃɛl/ /'tiː ʃɛl/ or /tiː siː ɛs 'eɪtʃ/ is a Unix shell based on and compatible with the C shell (csh The Z shell ( zsh) is a Unix shell that can be used as an Interactive login shell and as a powerful command interpreter for Runs most shell scripts compatible with the Bourne shell. Note that under Linux, most scripts seem to use at least some bash-specific syntax. The Slackware setup scripts are a notable exception, since ash is the shell used on the install disks. NetBSD uses ash as its /bin/sh.

References

Ash (Almquist Shell) Variants

References

See also