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Bash

GNU Bash or simply Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. First released in 1989, it has been used widely as the default login shell for most Linux distributions and Apple's macOS Mojave and earlier versions. A version is also available for Windows 10. It is also the default user shell in Solaris 11. Bash is a command processor that typically runs in a text window where the user types commands that cause actions. Bash can also read and execute commands from a file, called a shell script. Like all Unix shells, it supports filename globbing (wildcard matching), piping, here documents, command substitution, variables, and control structures for condition-testing and iteration. The keywords, syntax, dynamically scoped variables and other basic features of the language are all copied from sh. Other features, e.g., history, are copied from csh and ksh. Bash is a POSIX-compliant shell, but with a number of extensions. The shell's name is an acronym for Bourne-again shell, a pun on the name of the Bourne shell that it replaces and the notion of being "born again".

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EBooks  Advanced Bash-Scripting Guide

Advanced Bash-Scripting Guide

“This tutorial assumes no previous knowledge of scripting or programming, yet progresses rapidly toward an intermediate/advanced level of instruction … all the while sneaking in little nuggets of UNIX® wisdom and lore. It serves as a textbook, a manual for …

EBooks  Bash Guide for Beginners

Bash Guide for Beginners

“The primary reason for writing this document is that a lot of readers feel the existing HOWTO to be too short and incomplete, while the Bash Scripting guide is too much of a reference work. There is nothing in between …

EBooks  Bash Reference Manual - Reference Documentation for Bash 4.4

Bash Reference Manual - Reference Documentation for Bash 4.4

“This text is a brief description of the features that are present in the Bash shell (version 4.4, 7 September 2016). Bash is the shell, or command language interpreter, for the gnu operating system. The name is an acronym …