Well, the concept revolves around the idea that the basic shell or infrastructure should provide the bare necessities: power, networking, management, a high-speed bus, cooling, and storage.
这个概念围绕一个理念，即基本外壳或基础架构应该提供一些基本需求：电源、联网、管理、一条高速总线、冷却设备、以及存储器。
The concept of anonymous blocks is similar to UNIX shell scripts, which enable several manually entered commands to be grouped and executed as one step.
匿名块的概念类似于unix shell脚本，它支持将几个手动输入的命令合并到一个组，然后作为一个步骤执行。
Filename completion is not a new concept; many shells provide basic forms of completion, such the Bash shell which USES the TAB key, as in the following example.
文件名的完成并不是一个新的概念；许多shell可提供基本的完成格式，例如Bash shell可使用tab键，如下例所示。
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