Linux/Unix systems keep the details of the system uptime. You may also need to know when the server is running. This tutorial we will use Linux uptime command.
Check System Uptime in Linux
You can use the uptime command to find the system uptime. Uptime command is available under procps package. This command also provides the current system time, number of logged in users and current CPU load.
$uptime 07:33:31 up 174 days, 5:12, 2 users, load average: 0.17, 0.14, 0.17
as per the above output, the system is running from 174 days, 5 hours and 12 minutes.
Check Last Reboot in Linux
Additionally, you can also use the last command to find the system reboot history. This will help you to find when the system was last rebooted.
$last reboot reboot system boot 2.6.18-92.el5 Sat Feb 11 12:00 (12+22:51) reboot system boot 2.6.18-92.el5 Sun Feb 5 12:57 (5+21:17) reboot system boot 2.6.18-92.el5 Sat Jan 28 15:58 (13+18:16) reboot system boot 2.6.18-92.el5 Thu Jan 26 17:15 (15+17:00) reboot system boot 2.6.18-92.el5 Mon Jan 9 13:40 (32+20:35) reboot system boot 2.6.18-92.el5 Sun Jan 8 15:50 (33+18:24) reboot system boot 2.6.18-92.el5 Sat Dec 24 12:58 (48+21:17)
The above output shows that the system was last rebooted on Feb 11 at 12:00 PM and others as well.
I found “tuptime” easy to use.