Multiple choice

Which of the following statements is true?

  1. Tar command is used for back up

  2. The 'expr 4*5' will return 20.

  3. The mailx command informs user automatically about the arrival of a new mail

  4. All of the above

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is true. The mailx command informs the user automatically about the arrival of a new mail.