There are a few ways to shorten a video on Android. The first way is to use the " truncate " command. This command will cut off the end of the video and leave it with a short length. The second way is to use the " cut " command. This command will cut off the end of the video and leave it with a long length. The third way is to use the " copy " command. This command will copy the entire video into a new file and then name it accordingly.