LPIC-1 Exam 101 (Linux Administrator) — Question 30

What is the effect of the egrep command when the -v option is used?

Answer options

• A. It enables color to highlight matching parts.
• B. It only outputs non-matching lines.
• C. It shows the command's version information.
• D. It changes the output order showing the last matching line first.

Correct answer: B

Explanation

The correct answer is B because using the -v option with egrep inverts the matching process, thus only displaying lines that do not correspond to the specified pattern. Options A, C, and D are incorrect as they describe unrelated functionalities of the egrep command.