Shell Programming and Scripting

Hi, I am trying to find out if it is possible using the bash shell in unix to find out from a list of processes which of those belong to a specific user e.g user1?

Also is it possible to find out which processes currently running are using alot of resources?

All help is appreciated. Thanks

Do you mean a process tree?

Code:

ps -ejH
# or 
ps axjf

or maybe you mean:

Code:

ps -ef | grep username

Thanks jim mcnamara for that response that is what i am looking for but is it possible for me to somehow combine the two.

For instance using a simple echo command a screen will appear requesting a username, then depending on which username is entered the process tree is then searched for the desired username. Is this possible, if so how would i go about implementing this?