Linux 查看当前登录用户

w

可以看到当前登录用户、登录位置，以及他们正在执行的命令。

$ w
 09:43:34 up 1 day,  7:34, 10 users,  load average: 3.77, 2.59, 2.08
USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT
lx       pts/0    172.22.193.25    09:38   19.00s  0.49s  0.48s -zsh
lx       pts/1    tmux(6267).%0    Fri04   54.00s  2:06   0.92s /home/lx/.local/opt/miniforge3/envs/internlm-env/bin/python -u ./InternLM/train.py --config=./7b_pretrain_config.py --launcher torch
lx       pts/2    172.19.11.10     09:34   15.00s  2.67s  2.66s -zsh -g
lx       pts/3    172.22.193.25    09:38    4:38   9.20s  1.75s /home/lx/.local/opt/miniforge3/envs/internlm-env/lib/python3.10/site-packages/tensorboard_data_server/bin/server --logdir=logs --reload=5 --samples-per-plugin= --port=0 -
lx       pts/6    172.19.11.10     Fri08   21:28m 11.19s  7.44s -zsh
lx       pts/10   172.19.11.10     06:49   50:22  53:54   4.97s rsync -avP /data/ /mnt/lv_data/
hqm      pts/19   tmux(160805).%0  Fri10    2:56m  0.12s  0.12s -bash
cyh      pts/23   tmux(3990513).%0 02:45    6:57m  0.01s  0.01s -bash
lwq      pts/18   tmux(2294463).%0 08:28    1:12m  0.13s  0.12s tmux new -s lwq
lx       pts/42   172.19.11.10     09:42    0.00s  0.53s  0.03s w

who

可以看到当前登录的用户以及登录位置。

$ who
lx       pts/0        2025-03-01 09:38 (172.22.193.25)
lx       pts/1        2025-02-28 04:58 (tmux(6267).%0)
lx       pts/3        2025-03-01 09:38 (172.22.193.25)
lx       pts/6        2025-02-28 08:29 (172.19.11.10)
lx       pts/10       2025-03-01 06:49 (172.19.11.10)
hqm      pts/19       2025-02-28 10:50 (tmux(160805).%0)
cyh      pts/23       2025-03-01 02:45 (tmux(3990513).%0)
lwq      pts/18       2025-03-01 08:28 (tmux(2294463).%0)
lx       pts/42       2025-03-01 09:42 (172.19.11.10)

users

查看当前登录的用户

$ users
cyh hqm lwq lx lx lx lx lx lx

last

查看用户的登录记录

$ last lx
lx       pts/37       172.19.11.10     Sat Mar  1 09:47 - 09:50  (00:02)
lx       pts/42       172.19.11.10     Sat Mar  1 09:42   still logged in
lx       pts/3        172.22.193.25    Sat Mar  1 09:38   still logged in
lx       pts/0        172.22.193.25    Sat Mar  1 09:38   still logged in
lx       pts/2        172.19.11.10     Sat Mar  1 09:34 - 09:44  (00:09)
lx       pts/0        172.19.11.10     Sat Mar  1 09:30 - 09:35  (00:04)
lx       pts/10       172.19.11.10     Sat Mar  1 06:49   still logged in
lx       pts/11       172.26.77.233    Fri Feb 28 16:54 - 16:56  (00:01)
lx       pts/10       172.19.11.10     Fri Feb 28 10:43 - 06:49  (20:06)
...

wtmp begins Thu Feb 29 09:18:37 2024

参见：4 Ways to Identify Who is Logged-In on Your Linux System | thegeekstuff.com