What is Bourne Again Shell?

 

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.