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  2. Bash (Unix shell) - Wikipedia

    en.wikipedia.org/wiki/Bash_(Unix_shell)

    In computing, Bash (short for "Bourne Again SHell,") [6] is an interactive command interpreter and command programming language [7] developed for UNIX-like operating systems.. Created in 1989 [8] by Brian Fox for the GNU Project, [9] it is supported by the Free Software Foundation [10] and designed as a 100% [11] free alternative for the Bourne shell (sh) [12] and other proprietary Unix sh

  3. Bourne shell - Wikipedia

    en.wikipedia.org/wiki/Bourne_shell

    Bash (the Bourne-Again shell) was developed in 1989 for the GNU project and incorporates features from the Bourne shell, csh, and ksh. It is meant to be POSIX-compliant. rc was created at Bell Labs by Tom Duff as a replacement for sh for Version 10 Unix. It is the default shell for Plan 9 from Bell Labs.

  4. Comparison of command shells - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_command_shells

    Comparing Bash with the Windows Vista shell: Shell Games. Linux Magazine. Archived (PDF) from the original on 2014-10-10. "Shell and Utilities". IEEE Standard for Information Technology 1003.1™-2024 – Portable Operating System Interface POSIX™.1-2024 — The Open Group Base Specifications Issue 8 (2024 ed.). The IEEE and The Open Group ...

  5. Unix shell - Wikipedia

    en.wikipedia.org/wiki/Unix_shell

    Bourne-Again shell (bash): written as part of the GNU Project to provide a superset of Bourne Shell functionality. This shell can be found installed and is the default interactive shell for users on most Linux systems. KornShell (ksh): written by David Korn based on the Bourne shell sources [8] while working at Bell Labs; Public domain Korn ...

  6. Command-line interface - Wikipedia

    en.wikipedia.org/wiki/Command-line_interface

    Screenshot of a sample Bash session in GNOME Terminal 3, Fedora 15 Screenshot of Windows PowerShell 1.0, running on Windows Vista. A command-line interface (CLI) is a means of interacting with a computer program by inputting lines of text called command lines.

  7. Shell script - Wikipedia

    en.wikipedia.org/wiki/Shell_script

    One example of this is Bash, which offers the same grammar and syntax as the Bourne shell, and which also provides a POSIX-compliant mode. [13] As such, most shell scripts written for the Bourne shell can be run in BASH, but the reverse may not be true since BASH has extensions which are not present in the Bourne shell.

  8. pushd and popd - Wikipedia

    en.wikipedia.org/wiki/Pushd_and_popd

    [1] [2] They are widely available as builtin commands in many command-line interpreters , such as 4DOS , Bash , [ 3 ] C shell , tcsh , Hamilton C shell , KornShell , cmd.exe and PowerShell , and for various operating systems including both Windows and Unix-like systems.

  9. Almquist shell - Wikipedia

    en.wikipedia.org/wiki/Almquist_shell

    Almquist shell (also known as A Shell, ash and sh) is a lightweight Unix shell originally written by Kenneth Almquist in the late 1980s. Initially a clone of the System V.4 variant of the Bourne shell, it replaced the original Bourne shell in the BSD versions of Unix released in the early 1990s.