Need help on bundle usage

Hello,

If anyone can help me on how to use cfssl to generate a bundle of certificates?
I have tried `cfssl bundle -cert publiccert.pem` but it only gives me a json. I would like it to output to a valid .pem format. Is it possible to do so? I tried several ways using cfssljson but still not getting the result i want. Also not much information on google. Any suggestions are appreciated.

Thanks a lot!