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Re:The most surprising Unix programs by zamadatix on Sunday March 15, 2020 @10:43AM (#22583714)
Comm is perfect for scripting usage but you might find diff better for human usage. Added bonus diff also does binary.

Plus diff was in part written by the author of the linked content :).

Re:The most surprising Unix programs by loeg on Sunday March 15, 2020 @01:23PM (#22584834)
Comm operates on sets. Diff is a patch generator. They serve different needs. They're both useful!
Re:The most surprising Unix programs by TheGrassyKnoll on Sunday March 15, 2020 @11:16AM (#22583897)
You might enjoy tkdiff

  sudo apt-get install tkdiff