l am trying to implement social login with xamarin.auth on my mobile app.l have a web api backend supporting both a mobile and web app. my challenge right now is getting the keystore signature for xamarin.andriod. the process is stated in this document

https://docs.microsoft.com/en-us/xamarin/android/deploy-test/signing/keystore-signature?tabs=macos

but when l run

$ keytool -list -v -keystore ~/.local/share/Xamarin/Mono\ for\ Android/debug.keystore -alias androiddebugkey -storepass android -keypass android

it gives me command not found response.

l cant seem to be able to add keytool to the path variable. Can anyone direct me on how to add keytool to PATH variable.
l am using catalina os.