/boot/kernel/kernel
system name list
Show how long system has been running
uptime [--libxo]
The uptime utility displays the current time, the length of time the system has been up, the number of users, and the load average of the system over the last 1, 5, and 15 minutes.
The following options are available:
--libxo
Generate output via libxo(3) in a selection of different human and machine readable formats. See xo_options(7) for details on command line arguments.
/boot/kernel/kernel
system name list
$ uptime 11:23AM up 3:01, 8 users, load averages: 21.09, 15.43, 12.79
87 releases since FreeBSD 2.0.5-RELEASE; the text changed 38 times.
--libxo since FreeBSD 14.4-RELEASE.