Bash (Bourne Again SHell) is a command-line interface and scripting language used primarily on Linux and macOS systems.
It is an enhanced version of the original Bourne Shell (sh) with additional features like improved scripting capabilities, command-line editing, and job control.
Key Features:
– Command-line interface: Bash allows users to interact with the system by typing commands in a terminal.
– Scripting: Bash scripting enables automation of repetitive tasks by writing scripts containing a sequence of commands.
– Variables: You can store data in variables and manipulate it in scripts.
– Control Structures: Bash supports conditional statements (if, else), loops (for, while), and functions.
Example of a simple Bash script:
bash
#!/bin/bash
echo “Hello, World!”
This script prints “Hello, World!” to the terminal.
Uses:
– System administration tasks.
– Automating file management, backups, and installations.
– Writing utilities and scripts for software development.
Bash scripting is powerful and widely used in Unix-based systems for task automation and system management.