这两个参数有一个以枚举方式定义的允许值列表。

These two parameters have a list of allowed values defined in enumerations.

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然后，使用awk删除命令名称减号选项和参数，然后将经过排序的列表传递给uniq以得到一个枚举列表。

Then, use awk to strip out the command name minus options and arguments, and pass the sorted list to uniq to give an enumerated list.

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紧跟comparator类之后的代码创建了一个比较器的实例，并在创建记录枚举时将其作为一个参数。

The comparator class is followed by the code to create an instance of the comparator and pass this as a parameter when creating a record enumeration.

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