How to delete RAM cache on LInux VPS

Question

The buffer/cache on my VPS is almost full. How can I clear it? Is there any command for it?

I am using Debian 10 on my VPS.

Answer 1

The OS should clear the cache itself whenever it needs. However, if you want to delete cache yourself, you can run the following command. It should work on both Ubuntu and Debian.

echo 1 > /proc/sys/vm/drop_caches