Is covalent bonding only between non metals?

[supernova1203]

So far we've learned that ionic bonding is between metals and non metals, now we are learning about covalent bonding, so far it seems that covalent bonding is only between non metals. Is this true?

[Borek]

Mostly true, but be aware that there is no such thing as purely ionic or purely covalent bond - these are just approximations of reality.