Linux last命令用于显示系统开机以来获是从每月初登入者的讯息。
使用权限：所有使用者。
语法
shell>> last [options]
参数说明：
- -R 省略 hostname 的栏位
- -num 展示前 num 个
- username 展示 username 的登入讯息
- tty 限制登入讯息包含终端机代号
实例
shell>> last -R -2 johnney pts/1 Mon Aug 14 20:42 still logged in johnney pts/0 Mon Aug 14 19:59 still logged in wtmp begins Tue Aug 1 09:01:10 2000 ### /var/log/wtmp shell>> last -2 minery minery pts/0 140.119.217.115 Mon Aug 14 18:37 - 18:40 (00:03) minery pts/0 140.119.217.115 Mon Aug 14 17:22 - 17:24 (00:02) wtmp begins Tue Aug 1 09:01:10 2000
一般显示方法
# last
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