Introduction to Bash

Bash, also known as the Bourne Again Shell, is a command-line shell interpreter and scripting language. Bash was created by Brian Fox in 1989 as a free software replacement for the Bourne shell, which was proprietary software. (Bash – GNU Project – Free Software Foundation, https://www.gnu.org/software/bash/). It’s the most common Linux shell. Bash also introduced the ability to combine multiple commands into shell scripts that could be run by entering one command.

When you open a Terminal on a Linux system and enter commands, your Bash shell manages interactions with the operating system and running executables and scripts. Bash and Linux executables form a symbiotic relationship, each enhancing the functionality and efficiency of the other. Bash serves as the gateway for users and scripts to interact with the Linux kernel, the core of the operating system. It interprets user commands, whether entered directly into the Terminal or scripted...