Instead of using “adb shell content”, there’s a more clean way by using “adb shell settings”. They are doing the same thing, put value to settings provider.
adb shell settings put system accelerometer_rotation 0 #disable auto-rotate
adb shell settings put system user_rotation 3 #270° clockwise
accelerometer_rotation: auto-rotation, 0 disable, 1 enableuser_rotation: actual rotation, clockwise, 0 0°, 1 90°, 2 180°, 3 270°