如何在C中实现我自己的基本unix shell？ [英] How can I implement my own basic unix shell in C?

问题描述

我是一个处理和线程管理的新手。我的shell应该理解 PATH 环境变量。它可以设置和修改。它以两种方式运行 - 批处理模式。 Shell能够执行多个工作，如ls; ps; wc file; cal。我想让我的手脏信号了。所以我应该处理^ K，^ c。

I'm a newbie to process and thread management. My Shell should understand PATH environment variable. It can be set and modified. It runs in two ways -interactive & batch mode. Shell is capable of taking more than one job like ls;ps;wc file;cal. I want to get my hands dirty on signals too. So I should handle ^K , ^c as well.

我知道我必须使用exec，fork和pipe，但是不能开始。 >

I know I will have to use execs, forks and pipes but just can't get started.

推荐答案

所有unix shell都是开源的 - 所以一个好的开始可能是读代码。

All the unix shells are open-source - so a good place to start may be to read the code.

如果您正在寻找关于该主题的好的入门文章，请尝试写作

If you're looking for a good starter article on the subject try Writing Your Own Shell from the Linux Gazette.

另一个好的开始点是查看 mini-shell 只是因为它是最小的，让你的头圆。

Another good starting point is to take a look at the source code of mini-shell just because its one of the smallest to get your head round.

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