Bash: Bash is an alternative shell to the standard Bourne shell with similar syntax, but an expanded range of features, including aliasing, job control and auto-completion of file and directory names.

Bash： Bash是标准Bourne Shell的替代Shell，并且与之具有类似的语法，但同时具备大量的新特性，包括别名、作业控制以及文件和目录名自动完成。

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