Bash, or the Bourne-Again SHell, is a widely used command interpreter for the Linux operating system. It's a powerful tool that acts as a command-line interface, allowing users to directly instruct the operating system through written commands. Bash is known for its efficiency in automating tasks, scripting, and job control.

Bash Features and Usage

Bash is the default shell for many Linux distributions due to its user-friendly features and flexibility. It supports interactive command-line editing, job control, command history, and scripting. Users can execute commands directly or write a series of commands in a script file to be executed sequentially, which is particularly useful for repetitive tasks.

For instance, a simple Bash script to greet a user might look like this: