Last
- command to get the information of the user who has successfully logged into Linux system.
- last command will refer to binary files of /var/log/wtmp and display the result to screen.
Synopsis
Last
Last username
Note
If last command used without specify any username, it will show login of all users.
Example A: Showing login history of all users
| #last lee pts/3 192.168.139.1 Thu Jan 21 11:16 still logged in jane pts/4 192.168.139.1 Thu Jan 21 11:27 - 11:37 (00:10) root pts/3 192.168.139.1 Thu Jan 21 11:14 - 11:16 (00:01) root pts/2 Thu Jan 21 11:07 still logged in root pts/1 Thu Jan 21 11:07 still logged in root :0 Thu Jan 21 11:07 still logged in reboot system boot 2.6.9-42.ELsmp Thu Jan 21 10:52 (00:24) root pts/2 Wed Jan 20 22:00 - down (00:00) root pts/1 Wed Jan 20 21:59 - down (00:01) root :0 Wed Jan 20 21:59 - down (00:02) reboot system boot 2.6.9-42.ELsmp Wed Jan 20 21:57 (00:04) |
From the above example, we know the details of the login information as below
jane is login at 11:27 21th Jan and she logut 10 mins later at 11:37
| jane pts/4 192.168.139.1 Thu Jan 21 11:27 - 11:37 (00:10)username terminal hostname or ip login time and date logout time time of usage |
Example B: Showing login history of root user
| # last root root pts/3 192.168.139.1 Thu Jan 21 11:14 - 11:16 (00:01) root pts/2 Thu Jan 21 11:07 still logged in root pts/1 Thu Jan 21 11:07 still logged in root :0 Thu Jan 21 11:07 still logged in root pts/2 Wed Jan 20 22:00 - down (00:00) root pts/1 Wed Jan 20 21:59 - down (00:01) root :0 Wed Jan 20 21:59 - down (00:02) ¡¡ |