See uptime and average load information on Linux machines
kek@donald:~$ uptime 08:17:33 up 293 days, 14:21, 1 user, load average: 0.00, 0.00, 0.00
Show uptime on Windows machines using net stats
AFAIK there is no command in Windows to quickly see the uptime. However, there are several commands to get the last boot time, although you’ll have to do a quick calculation if you need the uptime in days. The easiest/fastest method is to use net stats.
net stats srv
C:\Users\kek>net stats srv Server Statistics for \\hostname Statistics since 09.11.2017 00.02.28 # last boot/uptime Sessions accepted 1 Sessions timed-out 0 Sessions errored-out 0 Kilobytes sent 1649 Kilobytes received 1181193 Mean response time (msec) 0 System errors 0 Permission violations 0 Password violations 0 Files accessed 329 Communication devices accessed 0 Print jobs spooled 0 Times buffers exhausted Big buffers 0 Request buffers 0 The command completed successfully.