command line to get the memory used by process

Question

What command line should I write to display the memory used by process as well as the process command line and it's pid ?

Something like:

pid mem cmdline
--- --- -------
112 12M mysql -param1 5 -param2 12
115 15M apache -param1 44 -param2 8
...

Answer 1

try

ps -eo pid,rss,cmd

Answer 2

Wasn't there something like the /proc directory? /proc/[id]/mem should lead you there.