New version using /proc/meminfo available

This is a great script that various people have improved. I’ve been using a forked version on github for some years. We recently improved it to use ‘/proc/meminfo’ output so it its less brittle to changes in ‘free’ output. So it works with almost all Linux releases/versions. Small improvements to the chart also.

https://github.com/whereisaaron/linux-check-mem-nagios-plugin