Multiple choice technology operating systems What does the head command do? It shows the first 20 lines It shows the first 10 lines It shows the first 50 lines It shows the first 5 lines Reveal answer Fill a bubble to check yourself B Correct answer Explanation By default, the Linux head command outputs the first 10 lines of a specified file. Distractors asserting 5, 20, or 50 lines are incorrect, as those numbers require explicit option flags (like -n) to override the default limit.