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Grep file comparison

2025-04-05 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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1. Files test1.txt and test2.txt

Filter test2.txt with information that test1.txt does not have.

Grep-vFf test1.txt test2.txt

2. Several lines before and after grep display

Grep can display several more lines with-A-B-C parameter after it.

Grep-A 5 can display the matching content and the next 5 lines.

Grep-B 5 can display matching content as well as the first five lines

Grep-C 5 can display matching content as well as the front and back 5 lines.

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