Memory Management in Linux

[Silvan Villiger <vsilvan@stud.phys.ethz.ch>]

Hi,

Can anyone give me a link to a guide which introduces into memory
management?

I need to understand expressions like "rss", "sz", "shared memory",
"memory leak", "core image of a process", "data section", "kernel
stack", "virtual size".

I've googled a lot and have red the man page of ps. But it seems as most 
of the information out there expects me to know the basic stuff above. I 
only found this picture: 
http://www.phptr.com/content/images/chap3_0131429647/elementLinks/03fig01.jpg 
and an explanation to it, so you can expect me to understand these 
things, but nothing more.
My goal is to write a script to monitor the memory-usage of a program 
and to detect memory-leaks using the ps-command. How would you detect 
memory leaks with it?

Greetings...     Silvan