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The output of your command "$ w" is:

 11:13:41 up 9 days, 12:39,  2 users,  load average: 0.00, 0.00, 0.00
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU  WHAT
wahid    tty2     -                31Oct25  9days  0.28s  0.16s /usr/libexec/gnome-session-binary --session=ubuntu