UPTIME(1) BSD Reference Manual UPTIME(1)
uptime - show how long system has been running
uptime
The uptime utility displays the current time, the length of time the sys- tem has been up, the number of users, and the load average of the system over the last 1, 5, and 15 minutes. This is the "heading" information from w(1).
w(1)
The uptime command appeared in 3.0BSD. MirBSD #10-current August 12, 1999 1