Display sums of memory usage of "similar processes"

Question

1. I want to have a whole list of all the processes with their memory usage.

2. I want to sum up the memory usage of similar processes (i.e. processes with the same name or the same father process)

How can I do that, e.g. with command line tools?

Solution

There are many commandline tools

ps which can be used to view processes their cpu usage etc. Just try ps aux.

top for system monitoring

htop is top with better readability

and there free, vmstat and pmap as well.

View respective man pages. i.e. man ps