On CentOS 6 hosts, you need to install python34 first
yum install python34
On both CentOS 6 and Rocky 9:
cd wget http://mirror.binarylane.com.au/tools/mpanel-memory-graph.tar.gz cd / tar xvzf /root/mpanel-memory-graph.tar.gz
Try to run it
/usr/local/bin/mpanel-memory-graph
If the prompt comes back with no output then it means it worked. (i.e. no python errors, etc).
A cron job is added to /etc/cron.d/mpanel-memory-graph . Delete the 2 files to uninstall.