[SlugBug] Using cut in bash scripts

[Bill Best]

hi there

just quickly, i would like to extract the process number of the icecast 
service running here and then give it a variable name:

> [root at machine ~] ps aux | grep icecast
> iceadmin  9862  0.0  3.4 339200 17796 pts/126 S   16:04   0:00 icecast -c /etc/icecast.xml
> root     10061  0.0  0.1  4444  592 pts/126  R    16:13   0:00 grep icecast

this is very wrong but might explain what i want the script to do:

ps aux | grep icecast | cut -f2 > /tmp/icecastproc.$$

i've tried using cut on the number of characters but no joy as yet.

i am writing this script to quickly stop and then restart an icecast 
server after the config file has been changed.

any ideas?  many thanks in advance and best regards

bill