Uptime Command in Unix and Linux with Example
Uptime command is very simple and useful in Linux , Give information about system current time, how long the system has been running, the number of users logged on and server load average.
The current server time is : 09:51:19, System uptime : 9 Hours 14 Minutes over, 2 User logged on server and the system load averages for the past 1, 5, and 15 minutes 1.04, 0.64, 0.56.
Likewise, we can discover the same information available on W command,
/var/run/utmp : information about who is currently logged on
/proc : process information