A simple zombie spawn script?

I'm looking for a simple script line to spawn a zombie in front of me or very close to me lol.

I don't need a bypass or anything since im running my own server without BE soo ..
I used to have the script and ive lost it and i cant remember how it went, all i know was it was very simple and was like one line.

Thanks.

I dont know any scripts like this. Maybe google will say?