*`cryptobox c filename.img filesystem size-in-mb`: creates an image file with a given filesystem and size in megabytes. (eg: `cryptobox c myimg.img ext4 128`)
*`cryptobox m filename.img /mount/point`: mounts a given image file on a given directory. (eg: `cryptobox m myimg.img /mnt/cryptoimg`)
*`cryptobox u /mount/point`: unmounts an image file from a given directory. (eg: `cryptobox u /mnt/cryptoimg`)