操作系统接口：兼容Unix 和Linux 命令接口。 为Windows 操作系统建立一个兼容Unix 命令的命令接口； 实现命令包括ls,cat,c...

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操作系统接口：兼容Unix 和Linux 命令接口。 为Windows 操作系统建立一个兼容Unix 命令的命令接口； 实现命令包括ls,cat,cp,rm,mv,ren,mkdir,rmdir,cd,help,exit命令的内容与详细格式请查阅unix 命令手册； 可以字符形式接收命令，执行命令，然后显示命令执行结果。-Operating system interface: compatible with Unix and Linux command interface. For the Windows operating system to build a Unix-compatible command interface realize the command, including ls, cat, cp, rm, mv, ren, mkdir, rmdir, cd, help, exit the command of the content and details of the format please refer to unix command manual can characters in the form of receiving orders, the implementation of the command, and then show the results of command execution.