How do you sign a PhoneGap app?

This is a quick thing.  When you build an app in PhoneGap Build, it asks for a keystore file.  So, how do you get one?  Here is the command for on the mac.

keytool -genkey -v -keystore [Name for the file].keystore -alias [Name for the app] -keyalg RSA -keysize 2048 -validity 10000

Remember to replace [Name for the file] and [Name for the app].  After that, just follow the prompts.

Happy developing!