Specify a particular keystore when using gradle and Intellij. Very useful when you're working with APIs relying on a particular keystore.

android_build.gradle

android {
    ...

    signingConfigs {
        debug {
            storeFile file("debug.keystore")
        }
    }
}

copy_keystore.sh

# first, change to the directory of the particular module you're working with
cd <Project_Parent>/<Android_Project_src>/
cp ~/.android/debug.keystore .