Bonnet cable repair/replace

[RetroPug]

My bonnet release cable has broken, basically all that has happened is the very end of it which fits into the release handle in the cabin has broken off. I can still see the end of the cable and can open the bonnet by pulling on it with pliers.

Has anyone got any bright ideas on how this might be reattached to the release handle?

Failing that, how easy is it to replace by tying a new one on the end or a string on the end and then to the new one and threading it through? Will it get snagged etc?

Thanks