How to remove non-gredy suffix from string in bash?

I would like to remove any suffix from a string starting with the last .svc. . As a example:

abc.svc.cluster.local => abc

abc.svc.svc.cluster.local => abc.svc

abc.txt => abc.txt

abc.svc.xyz.svc.zzz => abc.svc.xyz

svc.xxx => svc.xxx (missing . before svc)

If I was doing this is Go, I would find the last index of substring .svc. and then trim from that index.

How do I do this in bash? Thanks.

https://stackoverflow.com/questions/65791753/how-to-remove-non-gredy-suffix-from-string-in-bash January 19, 2021 at 08:43PM