Can I grep only the first n lines of a file?

Question

I have very long log files, is it possible to ask grep to only search the first 10 lines?

Answer 1

head -10 log.txt | grep -A 2 -B 2 pattern_to_search

-A 2: print two lines before the pattern.

-B 2: print two lines after the pattern.

head -10 log.txt # read the first 10 lines of the file.