The logged-in user, login time, connection source, etc. are displayed.
$ who
miisuke pts/0 2019-07-19 13:32 (gateway.test.jp)
It may be easier to understand with the item name if you add -H.
$ who -H
Name terminal time comment
miisuke pts/0 2019-07-19 13:32 (gateway.test.jp)
Shows the time the server started
$ who -b
system boot 2014-07-07 14:26
Try adding the u option as well.
# who -uH
USER LINE LOGIN-TIME IDLE FROM
number tty1 Nov 21 01:54 old
number pts/1 Nov 22 01:16 06:37
hoge pts/0 Nov 21 16:24 . (xxx.xxx.xxx.xxx)
number pts/2 Nov 22 01:29 02:08
hoge pts/3 Nov 23 03:03 00:06 (xxx.xxx.xxx.xxx)
About the display of the IDLE column
If. Is displayed, it means that the user is operating the terminal within 1 minute.
If old is displayed, it means that the user has not operated the terminal for more than 24 hours.
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