A shell is an interface between the user and the operating system that allows users to interact with the OS by executing commands, managing files, and running applications.
- Shells are essential for accessing and managing system functions, either through text commands or graphical elements.
Types of Shells
1.) Command Line Shell:
A Command Line Shell is a text-based interface between the user and the operating system that allows users to interact with the OS using command line.
- It’s powerful for managing files, automating tasks, and accessing system resources with precise control.
- Efficient for complex operations, scriptable, and allows for deep control over the system. It requires users to know commands but is highly versatile for advanced users.
Examples: Bash (Linux/Unix), PowerShell (Windows), and Command Prompt (Windows).
2.) Graphical Shell:
A Graphical Shell is a visual interface between the user and the operating system that allows users to interact with the OS using icons, menus, and windows.
- It makes OS navigation intuitive and accessible to general users.
- User-friendly and visually oriented, making it easy for users to access applications and files. It’s well-suited for basic and everyday tasks but may lack the depth of control that command line shells offer.
Examples: Windows Explorer in Windows OS, Finder in macOS, and GNOME/KDE desktop environments in Linux.