linux僵死进程的产生与避免。

一个进程在调用exit命令结束自己的生命的时候，其实它并没有真正的被销毁， 而是留下一个称为僵死进程（Zombie）的数据结构（系统调用exit，它的作用是使进程退出，但也仅仅限于将一个正常的进程变成一个僵死进程，并不能将其完全销毁）。-linux zombie processes produce and avoid。

Data structure (a process calls the exit command to end their lives when, in fact, it does not really been destroyed, but leaving a known as a zombie (Zombie) system call to exit, and its role is to make the process exits,but only limited to a normal process to become a zombie, can not be destroyed completely destroyed).