Ruptime

This gives you the uptime and system load of shell servers.

centos6 up 0:43, 2 users, load 0.04, 0.04, 0.04
centos7 up 0:25, 0 users, load 0.00, 0.01, 0.00
debian up 0:31, 0 users, load 0.13, 0.06, 0.08
eskimo up 19+02:01, 2 users, load 0.07, 0.01, 0.00
fedora up 0:28, 0 users, load 0.07, 0.04, 0.08
ftp up 1:40, 0 users, load 1.06, 1.26, 1.54
mint down 17+23:00
mxlinux up 4+16:58, 0 users, load 0.15, 0.26, 0.31
scientific up 4+16:07, 0 users, load 0.00, 0.02, 0.00
scientific7 up 4+16:37, 0 users, load 0.44, 0.28, 0.18
ubuntu up 1:16, 0 users, load 0.06, 0.05, 0.02