Introduction - If you have any usage issues, please Google them yourself
Shell is basically divided into two categories: a: a graphical interface shell (Graphical User Interface shell or GUI shell) example: the most widely used Windows Explorer (Microsoft windows family of production systems), there are also well-known Linux shell, which linux shell, including X windows manger (BlackBox and FluxBox), as well as the more powerful of the CDE, GNOME, KD, XFCE. Second: the command line shell (Command Line Interface shell, that is, CLI shell) such as: bash/sh/ksh/csh (Unix/linux systems) COMMAND.COM (MS-DOS systems) cmd.exe/characters in the command prompt (Windows NT system) Windows PowerShell (support. NET Framework technology, Windows NT systems)