Uniq (pronounced "unique") scans a list, comparing adjacent elements in the list and removing any duplicates. For instance, suppose you have this list.

uniq(读做“unique”)，扫描列表，比较列表中的相邻元素，以去除任何重复项。

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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.

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。

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Therefore, the output of the entire script is piped through sort, and then uniq to yield an alphabetized list of unique commands found in your $PATH.

因此，整个脚本的输出通过 sort、然后通过 uniq 进行管道传输，以产生在您的 $PATH 中找到的唯一命令的字母排序列表。

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