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For taking patterns from a file, -f option is specified with grep command.

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For taking patterns from a file, -f option is specified with grep command.

(a) True

(b) False

I got this question in final exam.

This question is from grep command topic in division Filters using Regular Expressions of Unix

1 Answer

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Correct answer is (a) True

Easy explanation: If we want to search a single pattern or more than one pattern, then we can place them into a file with one pattern per line and after that, we can take the pattern for the grep command from the same file using -f option. For example,

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