bash

Bash is a command shell and language interpreter that is available for operating systems such as Linux, macOS, and even Windows. The name Bash is an acronym for the Bourne-Again shell.
A shell is a command-line tool that allows for interactive or non-interactive command execution.
Having a good background in Bash enables you to quickly create scripts, parse data, and automate different tasks and can be helpful in penetration testing engagements.

The following websites provide examples of Bash scripting concepts, tutorials, examples, and cheat sheets:

• Linux Config Bash Scripting Tutorial: https://linuxconfig.org/bash-scripting-tutorial ↗
• DevHints Bash Shell Programming Cheat Sheet: https://devhints.io/bash ↗