gzip syntax for cold backup

I've completed a cold backup using the following syntax:

gzip -c 'list of DB files to be zipped' > cb_dbname_date.gz

Now when I try to refresh from cold backup, I use this syntax:

gunzip cb_dbname_date.gz -- in the current directory

The problem is that this is only creating a single *HUGE* file, instead of decompressing to each individual db file (e.g., control01, control02, etc....)

Can anyone please help me deflate this file back to it's original db files?

Platform: Solaris 9
DB Version: Oracle 10g

TIA, //NC Received on Fri Mar 31 2006 - 07:39:37 CST