zsh + oh-my-zsh

Zsh is a powerful Unix shell that offers advanced features for command-line users, including improved tab completion, theme support, and a highly customizable environment. It functions as a command interpreter for interacting with the operating system, executing scripts, and managing files.

Oh My Zsh is an open-source framework for managing Zsh configurations. It bundles a large collection of plugins and themes, simplifying the process of customizing and extending Zsh's functionality. This combination is ideal for developers, system administrators, and power users who seek a more efficient and personalized command-line experience.