Where Online Learning is simpler!

The output of your command "$ w -h" is:

wahid             192.168.254.125  Sat20    2days  0.00s  0.68s sshd: wahid [priv]
wahid    tty2     -                Fri23    4days  0.37s  0.26s /usr/libexec/gnome-session-binary --session=ubuntu