# works on FAT32 too:
hdparm --fibmap "$@"  # | count lines?
#_ES=$? ; [ $_ES -ne 127 ] && exit $_ES	

# ALTERNATIVES:
#   NO(ext only) filefrag -v "$@"
#   ? debugfs -R "stat /path/to/file" /dev/<partition>
#   ... http://serverfault.com/questions/29886/how-do-i-list-a-files-data-blocks-on-linux
#   ... http://unix.stackexchange.com/questions/68189/a-clever-way-to-defragment-a-fat-filesystem
	
#else
exit 127