Bash (Bourne Again SHell) is a command language interpreter that is widely used as the default shell on many Unix-like operating systems, including most Linux distributions and macOS. Bash provides a command-line interface that allows users to interact with the operating system by typing commands. It supports a wide range of features for scripting and automation, making it a powerful tool for both system administrators and developers.
PowerShell is a cross-platform task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language. It is designed for system administrators and power users to control and automate the administration of operating systems and applications.
Fish (Friendly Interactive SHell) is a modern command-line shell designed to be user-friendly and feature-rich. It aims to be interactive and intuitive, providing a more pleasant experience for users compared to traditional shells like Bash.
Zsh (Z shell) is a powerful, flexible, and highly customizable Unix shell that incorporates features from other popular shells such as Bash, Ksh, and Tcsh. It is often used as an interactive login shell and a powerful scripting language interpreter.