There is no doubt, UNIX/Linux software, is one of the most important shell, the...

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毫无疑问，UNIX/Linux 最重要的软件之一就是shell，目前最流行的shell 被称为Bash(Bourne Again Shell)，几乎所有的Linux 和绝大部分的UNIX 都可以使用Bash。作为系统与用户之间的交互接口，shell几乎是你在UNIX 工作平台上最亲密的朋友，因此，学好shell，是学习Linux/UNIX 的的开始，并且它会始终伴随你的工作学习。-There is no doubt, UNIX/Linux software, is one of the most important shell, the most popular shell is called Bash (Bourne Again Shell), almost all Linux and most UNIX can use Bash. As the interaction between system and user interface, shell almost UNIX workstations in your most intimate friends, therefore, to learn shell, is to learn Linux/UNIX in the beginning, and it will always work with you to learn.