Openssl is not recognized as an internal or external command

I wish to generate an application signature for my app which will later be integrated with Facebook. In one of Facebook’s tutorials, I found this command: keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64 In the tutorial, it says that by running this cmd, my process of generating the signature … Read more