2010/11/17 River Tarnell <river.tarnell@wikimedia.de>

You shouldn't worry too much about resource use as long as it's not excessive.
We (TS admins) will let you know if you seem to be using too many resources.

This is exactly what I'd like to know. :-)
 
> Feel free to send me your best link to a tutorial "Unix for dummies".

I usually recommend the book "Understanding UNIX" by Stan Kelly-Bootle, but
unfortunately it's out of print, and it also doesn't answer this particular
question.  (But it does tell you just about everything else you'd want to
know.)

Thanks. There are lots of tutorials online, presently I'm very proud to banal goals like changing PATH by python and running my first bash "Hello world" script. Just to let you know how much dummy I am.  

Alex