What
is Bourne Again Shell?
The "Bourne Again Shell," commonly known as "bash," is a popular Unix shell and
command language interpreter. It is an enhanced version of the original Unix
shell, known as the "Bourne shell" (sh), which was developed by
Stephen Bourne.
Bash was created by Brian Fox
in 1989 as a free and open-source alternative to the Bourne shell. It was
intended to improve upon the Bourne shell by adding new features and enhancing
its usability. Bash is the default shell for most Linux distributions and is
also available on other Unix-like operating systems.
Bash provides a command-line
interface (CLI) for interacting with the operating system. It allows users to
execute commands, write shell scripts, and automate various tasks. Some of the
features that distinguish bash from its predecessor and other shells include
command line editing, command history, tab completion, and job control.
Bash supports a wide range of
programming constructs, such as loops, conditionals, functions, and variables,
making it a powerful scripting language. It also includes various built-in
commands and utilities that can be used to manipulate files, process text, and
perform system administration tasks.
Overall, bash is a versatile
and widely used shell that has become a standard on Unix-like systems due to
its powerful features and extensive compatibility.
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