To check free memory in Megabytes
Code: 
free -m
minus the cached memory from used RAM to get original RAM usage.

You can use
Code: 
top
to get system monitor and hit Shift+M (capital M) to get processes ordered by RAM usage.

You can also use
Code: 
ps aux
to get all processes list.

Regards
kris Reviewed by kris on . How to check total RAM memory available in a VPS in *realtime* .. ? Hi guys .. I recently purchased a VPS, and on paper its supposed to give me 1 GB of dedicated memory and another 1 GB of burstable memory ... So at any given time, the total amount of memory that should be available to me should be between 1 GB and 2 GB, right ? Correct me if I'm wrong .. How can I check this from within my Ubuntu VPS ? So that I know I'm getting what I'm paying for .. Rating: 5