Multiple choice technology

The command "who" is used to

  1. Show disk space available on the system

  2. Show the last few lines of a file

  3. Show who are all logged into the local system

  4. Show error

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

The who command shows information about users currently logged into the system. It displays usernames, terminal lines, login times, and remote hostnames. This is different from whoami (shows only current user) or w (similar to who but includes what users are doing).