Câu 25: 010-150: Entry Level Linux Essentials Certificate of Achievement

What is the output of the following command?tail -n 20 test.txt

1. A. The first 20 lines of test.txt.
2. B. The last 20 lines of test.txt omitting the blank lines.
3. C. The last 20 lines of test.txt with line numbers.
4. D. The last 20 lines of test.txt including blank lines. — đáp án hiện tại