Questions tagged [who]
Command to list which users are logged in the system. For questions related to how to interpret and use the coreutils who command.
61 questions
-2 votes
1 answer
57 views
Output who -l some columns unknown
Today another day of studying: who turn I type who -l who -l UUCP . Feb 22 15:57 0:14 488 LOGIN console Feb 22 15:57 0:07 494 zsmon . Feb 22 15:57 ...
- 14.3k
2 votes
1 answer
791 views
My username mentioned twice in who command
I noticed by chance today that I had 2 users running on my Linux system. I do not know much about Linux users but I ended up running the “w” command that gave the following output when Firefox is ...
- 135
0 votes
1 answer
580 views
"Other users are logged in" how does the system know? Where is the information leaking?
(Example screenshot taken from https://askubuntu.com/questions/1343872/ubuntu-shows-other-users-are-logged-in-whenever-i-shut-down-even-though-i-am-the) But my question is: how does the system know ...
- 25
0 votes
1 answer
43 views
who command: What do the - + ? symbols represent with the -T option?
Through the man who appears the following for the -T option -T, -w, --mesg add user's message status as +, - or ? According with some tutorials, if is executed who -T should appears these ...
- 2,196
0 votes
1 answer
181 views
How to disable a malicious kick off service
I'm using a Linux server with my whole team together. We all have sudo permission. As we know, we can kick someone off easily: who -u will list all of ssh logins with their PIDs and then kill -9 ...
- 3,411
0 votes
1 answer
594 views
Command to Get Calling Server's Name
A shell script running on a batch server will ssh (ssh -n root@prodfs1) to the file server to run another shell script, but we'd like to run subsequent shell scripts back on the original batch server. ...
3 votes
1 answer
7k views
How to view all currently logged in users on Alpine Linux?
How to view all currently logged in users on Alpine Linux? It doesn't have who by default apk add who doesn't find any packages. Is there another package for Alpine that contains who? Or does it use ...
- 748
0 votes
0 answers
248 views
How to interpret the output of the "who" cmd? - wrong date, non-existing user
On a SLES11, I can see the following output: $ who | grep -i FOOBARUSER FOOBARUSER ::ffff:127.0.0.1:3 Mar 2 09:52 (::ffff:127.0.0.1::ffff:127.0.0.1:3) FOOBARUSER ::ffff:127.0.0.1:3 Mar 2 09:52 (:...
- 117