UGC NET CSE | Junet 2015 | Part 2 | Question: 39

Question

What does the following command do? grep -vn "abc" x

• A. It will print all of the lines in the file x that match the search string "abc"
• B. It will print all of the lines in file x that do not match the search string "abc"
• C. It will print the total number of lines in the file x that match the search string "abc"
• D. It will print the specific line numbers of the file x in which there is a match for string "abc"

Answer 1

ans is B grep(globally search a regular expression and print it) with -v invert match option display those line which do not contain the specified string

Comments

Thank you for the answer but it cannot be v for verbose that doesn't make sense, it is v for invert-match!