教学作业完成的，在minix系统下可以编译执行的shell程序。可完成重定向和管道的输入输出。-Teaching job is completed, the system may be compiled in the minix shell procedure executed. Complete input and output redirection and pipes.

Minix下shell的实现 & 读者写者问题的实现 & piple监视系统的实现-Implementation & under Minix shell readers to write the problem of the realization of & piple Monitoring System