Query Users and Groups

Question 1

gives details of a user currently logged into a system

• user name
• name of system from which user is connected
• date and time that the user has been connected since

Answer 1

who

Question 2

option that shows how long users have been idle

Answer 2

who -u

Question 3

shows who is logged in and what they are doing

Answer 3

w

Question 4

displays history of user login and logout actions, with time and date.
-retrieves info from /var/log/wtmp file

Answer 4

last

Question 5

used to display userID and groupID info

Answer 5

id