Linux last 命令用于显示用户最近登录信息。
单独执行 last 指令,它会读取位于 /var/log/目录下,名称为 wtmp 的文件,并把该文件记录登录的用户名,全部显示出来。
last [options] [username...] [tty...]
参数说明:
options:
username:
tty:
显示两行:
# last -R -2 root pts/0 Thu Apr 28 18:06 still logged in root pts/0 Tue Apr 26 09:06 - 19:36 (10:30) wtmp begins Sun Apr 3 13:11:25 2022
显示两行,并省略主机列:
~# last -R -2 root pts/0 Thu Apr 28 18:06 still logged in root pts/0 Tue Apr 26 09:06 - 19:36 (10:30) wtmp begins Sun Apr 3 13:11:25 2022
一般显示方法:
# last ... root pts/4 Thu May 13 17:25 still logged in root pts/2 Thu May 13 17:23 - 17:25 (00:02) root pts/1 Thu May 13 16:46 still logged in ...
简略显示,并指定显示的个数:
# last -n 5 -R root pts/4 Thu May 13 17:25 still logged in root pts/2 Thu May 13 17:23 - 17:25 (00:02) root pts/1 Thu May 13 16:46 still logged in root pts/7 Thu May 13 15:36 still logged in root pts/9 Thu May 13 15:35 still logged in wtmp begins Thu May 13 18:55:40 2014
显示最后一列显示主机 IP 地址:
# last -n 5 -a -i root pts/4 Thu May 13 17:25 still logged in 192.168.1.10 root pts/2 Thu May 13 17:23 - 17:25 (00:02) 192.168.1.10 root pts/1 Thu May 13 16:46 still logged in 192.168.1.10 root pts/7 Thu May 13 15:36 still logged in 192.168.1.10 root pts/9 Thu May 13 15:35 still logged in 192.168.1.10 wtmp begins Thu May 13 18:55:40 2014