Shell script to update zone file

Hi folks,

I have zone files at below path i want to modify their name i don't know how to do it, Can some can suggest some kind line technique. I give you detail

I have domain ibphello.com host at ip address 10.2.2.1 and 50 plus domain are there /var/named/*.db. If i want to change ibphello.com to 10.5.5.5.
If i have ip address 10.1.1.1 to abcd.com.
Please suggest.