一个简单的shell命令解释器，有重定向，管道，历史等功能。-A simple shell command interpreter, redirection, pipes, history.

ipython 是一个 python 的交互式 shell，比默认的python shell 好用得多，支持变量自动补全，自动缩进，支持 bash shell 命令，内置了许多很有用的功能和函数。在ubuntu 下只要 sudo apt-get install ipython 就装好了，通过 ipython 启动。-ipython is a python interactive shell, than the default python shell is much more useful to

windows 命令解释器（shell）模拟程序-windows command interpreter (shell) simulation program

 Your shell prompt MUST adhere to the following format: o Current date (optional) and time (mandatory) followed by the hash sign (e.g., 13:03:00#)  Your shell MUST support, at minimum, the following commands: o The internal shell co