WHO(1)

📦
version 9.10 · 5 versions
, in ubuntu stonking

👑 WHO(1) — the "who's online rn" manual

okay bestie, welcome to who, a User Commands classic 💅 she's in section 1 of the manual, and she's literally the original "seen at" feature but for your whole machine.

✨ NAME ✨

who — show who is logged on 🫶

🌸 SYNOPSIS 🌸

who [OPTION]... [ FILE | ARG1 ARG2 ]

💖 DESCRIPTION 💖

Print information about users who are currently logged in. that's it, that's the whole vibe. it's giving "who's in the group chat" but the group chat is your system 🌈

🎀 OPTIONS 🎀

  • -a, --all — same as -b -d --login -p -r -t -T -u (yes, she's doing ALL of it, main character behavior)
  • -b, --boot — time of last system boot ⏰
  • -d, --dead — print dead processes 💀 (rip to them fr)
  • -H, --heading — print line of column headings
  • -l, --login — print system login processes
  • --lookup — attempt to canonicalize hostnames via DNS
  • -m — only hostname and user associated with standard input
  • -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 (this is the default, no cap)
  • -t, --time — print last system clock change
  • -T, -w, --mesg — add user's message status as +, - or ?
  • -u, --users — list users logged in, including idle time
  • --message — same as -T
  • --writable — same as -T
  • --help — display this help and exit
  • --version — output version information and exit

🦋 the tea on FILE and ARG1 ARG2 🦋

If FILE is not specified, use /var/run/utmp. /var/log/wtmp as FILE is common. If ARG1 ARG2 given, -m presumed: 'am i' or 'mom likes' are usual. (yes those are real. iconic honestly.)

💜 AUTHOR 💜

Written by Joseph Arceneaux, David MacKenzie, and Michael Stone. 👑

😭 REPORTING BUGS 😭

Report bugs to: bug-coreutils@gnu.org

GNU coreutils home page: <https://www.gnu.org/software/coreutils/>

General help using GNU software: <https://www.gnu.org/gethelp/>

Report any translation bugs to <https://translationproject.org/team/>

⭐ SEE ALSO ⭐

Full documentation <https://www.gnu.org/software/coreutils/who>

or available locally via: info '(coreutils) who invocation'

Packaged by Ubuntu (9.10-1ubuntu2)

Copyright © 2026 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.

fr fr read that license part, bestie — no warranty, to the extent permitted by law 🙈

okay that's the whole page, go forth and who 🫶

this was GNU coreutils 9.10, dated August 2026 — that's the footer, and that's my sign-off, mwah 💖✨

📦 where this page comes from