WHOSection: User Commands (1)
Updated: February 2022
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NAMEwho - show who is logged on
SYNOPSISwho [,OPTION/]... [ ,FILE | ARG1 ARG2 /]
Print information about users who are currently logged in.
- -a, --all
- same as -b -d --login -p -r -t -T -u
- -b, --boot
- time of last system boot
- -d, --dead
- print dead processes
- -H, --heading
- print line of column headings
- print ips instead of hostnames. with --lookup, canonicalizes based on stored IP, if available, rather than stored hostname
- -l, --login
- print system login processes
- attempt to canonicalize hostnames via DNS
- only hostname and user associated with stdin
- -p, --process
- print active processes spawned by init
- -q, --count
- all login names and number of users logged on
- -r, --runlevel
- print current runlevel
- -s, --short
- print only name, line, and time (default)
- -t, --time
- print last system clock change
- -T, -w, --mesg
- add user's message status as +, - or ?
- -u, --users
- list users logged in
- same as -T
- same as -T
- display this help and exit
- output version information and exit
AUTHORWritten by Joseph Arceneaux, David MacKenzie, and Michael Stone.
REPORTING BUGSGNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHTCopyright © 2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
SEE ALSOFull documentation <https://www.gnu.org/software/coreutils/who>
or available locally via: info '(coreutils) who invocation'
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