Si te connectas por via de CLI y ejecutas "history"
[root@airwavesvr mercury]# history
1 2014-03-31 13:23:06 daemons
2 2014-03-31 13:23:23 reboot
3 2014-03-31 13:29:16 amp_upgrade
4 2014-03-31 14:29:42 daemons
5 2014-03-31 14:33:54 ?
6 2014-03-31 14:34:13 amp_version
7 2014-04-01 14:34:55 reload
8 2014-04-01 14:35:11 restart_daemons.pl
9 2014-04-04 10:05:06 amp_upgrade 8.0
10 2014-04-04 10:05:14 amp_upgrade -v 8.0
11 2014-04-04 10:32:14 amp_version