The magical linux:-of Comm Command

Parameters://Assume a set, B set, AB intersection # COMM [Options] Texta textboptions:1, representing a set to remove the overlap of ab intersection that part; 2, the B set to remove the overlap of ab intersection that part; 3. The part of AB intersection overlap , the------------------------------------1 means to remove (a set to remove the overlap of ab intersection of that part), leaving the B-set;-2 is to remove (b set to remove the overlap of ab intersection that part), leaving a set;-3 means to remove the AB intersection overlap that part Score of

So push down;

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Application Scenarios:

A file contents: B File Content

1 2

2 3

3 4

4 5

As can be seen, the a file overlaps with the B file that part is 2, 3, 4

Comm-12 a B

Results: 2, 3, 4

The magical linux:-of Comm Command