FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -Description. The who command displays information about all users currently on the local system. The following information is displayed: login name, tty, date and time of login. Typing who am i or who am I displays your login name, tty, date and time you logged in.

Detailed explanation-2: -Displays user, group and privileges information for the user who is currently logged on to the local system. If used without parameters, whoami displays the current domain and user name.

Detailed explanation-3: -Running the lslogins command without any options shows default information about all system and user accounts on the system. Specifically, their UID, user name, and GECOS information, as well as information about the user’s last login to the system, and whether their password is locked or login by password disabled.

Detailed explanation-4: -Linux stores information about local users in the /etc/passwd file. Each line in the file contains information about a single user, including their username, user ID number (UID), home directory, and the login shell.