I have one Pi set up with a LED bargraph for an "at a glance" status that shows CPU temp, RAM used, and CPU load. Another Pi is set up with a 16x2 LCD that scrolls through system information like IP address, CPU load, CPU clock speed, CPU temp, disk space/usage, etc. To display CPU usage on the LCD...

What do i put in the brackets to display ram info on the lcd?

CPU usage in %, used ram/free ram. I already got it working with average load and CPU temp.

Could someone please explain to can i get the CPU and ram info to show on my 16x2 LCD screen?
what commands do i neet to put in the python code?
Thanks in advance.