Shulou(Shulou.com)06/02 Report--

How to use sort and uniq commands to achieve set operation, in view of this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

Principle:

The premise is that the respective contents of the two list files cannot be duplicated (otherwise they can be processed by sort-u); the cat command mixes the two files, sort keeps it in order, and then uses the-d parameter of the uniq command (only duplicates are printed) and the-u parameter (only non-duplicates are printed)

Example:

Assume that the list1.txt content is

A.mp4

B.mp4

The content of list2.txt is

B.mp4

C.mp4

Union set

Cat list1.txt list2.txt output a.mp4b.mp4c.mp4

Intersection

Cat list1.txt list2.txt | sort | uniq-d output b.mp4

Unique to list1.txt

Cat list1.txt list2.txt | sort | uniq-d > bothboth content is b.mp4cat list1.txt both | sort | uniq-u output a.mp4

Unique to list2.txt

Cat list1.txt list2.txt | sort | uniq-d > bothboth is b.mp4cat list2.txt both | sort | uniq-u outputs c.mp4 's answers to questions on how to use sort and uniq commands to implement collection operations. I hope the above content can be of some help to everyone. If you still have a lot of doubts to be solved, you can follow the industry information channel for more related knowledge.

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