Ravi Sir's Cards › AWS
diff vs comm
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Input
diff
Any two files.
comm
Two sorted lists.
Key points
Shows line changes as a patch.
Shows only-1, only-2, both.
Example
diff -u a b
Use when
Config review.
Server lists.