命令名称和输出性质都有了显著改变。
The command names have changed dramatically and so has the nature of the output.
您也许还会认出某些UNIX命令名称和组合，或者了解何时使用别名来作为某个命令组合的简写形式。
You might also recognize certain UNIX command names and combinations, or realize when an alias is being used as a sorcerer's shorthand.
CommandGroupExtension指定名称属性中的命令组名称和命令属性中的命令名称列表。
CommandGroupExtension specifies the command group name in the name attribute and the list of command names in the commands attribute.
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