Getting adb working with my galaxy s3 to debug my app

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http://stackoverflow.com – I've managed to turn on developer features (debugging mode), got adb running, it recognizes my device when I plug it into usb (woohoo!), but I can't seem to cd into my app's directly when I adb shell into my device. Is there a way to get root access, or a better way to debug my app? Most importantly how can I view console.logs? (HowTos)