/tmp # ./Wipe_Data_Without_Wiping_Media
Mounting /data partition (attempt 1)...
Wiping data without wiping /data/media ...
skipped '/data/media'
skipped '/data/.layout_version'
Done. (Deleted 730 directories and 1615 files)

/tmp # ./Wipe_Data_Without_Wiping_Media
/data partition already mounted
Wiping data without wiping /data/media ...
skipped '/data/media'
skipped '/data/.layout_version'
Done. (Deleted 0 directories and 0 files)