On bookworm who (GNU coreutils 9.1) operates more or less as I have
expected it to operate for several decades: it prints current logins.
E.g.:
charles@hawk:~$ who
charles tty7 2025-03-30 11:31 (:0)
charles pts/35 2025-03-27 20:13 (192.168.100.47)
root pts/36 2025-03-27 21:48 (192.168.100.47)
charles@hawk:~$
On trixie who (GNU coreutils 9.5) gives me a long list of logins, most
of which predate the most recent reboot. "who -u", similarly.
On my Trixie system `who --users` only provides a carriage return and prints no information. 'who -a' only prints the last boot time. Seems like who is seriously broken.
How do I get only the current logins?
Also, who on bookworm works fine with no arguments. who on bookworm
requires the file to use in order to get any useful output at all,
e.g.: "who -Hu /var/log/wtmp". This might be a bug.
Finally, I see that bug #798910, "coreutils: /usr/bin/who --lookup does
not look up ip addresses in dns", is still outstanding and a bit
annoying. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798910
Thank you.
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