注意，如果由于权限限制无法访问某个命令或文件，那么命令补全也无效。

Note that if you cannot access the command or file because of permissions restrictions, command completion won't function for you.

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Git插件还为常用的Git命令组合创建别名，为Git选项提供上下文敏感的命令补全特性。

The Git plug-in also adds helpful aliases for common Git command combinations and context-sensitive completions for Git options.

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Spring Roo框架提供了一个带有tab命令补全、能感知上下文操作及命令提示特性的命令行shell。

Spring Roo framework provides a command line shell with TAB completion, context aware operations and command hinting features.

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