pid of a script?

["ah." <ah@siol.net>]

I was wondering how to find out the pid of a (bash) script.
Suppose it's called SCRIPT. Issuing pidof SCRIPT echoes nothing,
yet ps x shows the pid of it something like /bin/bash ./SCRIPT.
But then pidof "/bin/bash ./SCRIP" again does nothing. Simply
saying pidof bash gives the (probably) right result but how many
bash scripts could there be running at the same time!?

I'll tell you why I want to do this afterall (and maybe there's a
better way of doing it, please tell me) -- another script/process/program
or whatever must run exactly untill the first one finishes. I've
figured it could be done like

until [ -z `echo $(pidof some_program)` ]

If the program isn't another script, it works. Otherwise?
Thanks for the suggestions,

andrej


--
echo $(girl_name) > /etc/dumpdates