默认情况下，bash shell 会忽略收到的任何 SIGQUIT (3)和 SIGTERM (15)信号（正因为这样，交互式 shell 才不会被意外终止）。但是 bash shell 会处理收到的 SIGHUP (1)和 SIGINT (2)信号。 如果 bash shell 收到了 ...
sh（Bourne Shell）：由Steve Bourne开发，各种UNIX系统都配有sh。 csh（C Shell）：由Bill Joy开发，随BSD UNIX发布，它的流程控制语句很像C语言，支持很多Bourne Shell所不支持的功能：作业控制，命令历史 ...
In this tutorial you will go through the steps to code your very own simple shell in C language. This is an exciting journey to the bowels of bash and the creative way it is built. After this tutorial ...
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