内含6个Linux平台下的程序，属于验证性程序，可以用来学习Linux下对管道文件等必要操作的学习。源代码运行的平台是Fedora7.0版本Linux，但在其他Linux平台上都已得到了验证，均可正确实现。-Intron 6 of the procedures under the Linux platform, which authentication process can be used to study under Linux Pipeline documents necessary to operate learning. The source code to run the platform is Fedora7.0 version of Linux, but in other Linux platforms have been validated, can achieve the right.