The defragfs project aims on file-system/directory defragmentation of the Linux operating system, it is (currently) file-system independent and only CLI, hope further development could bring the GUI and better functionality.
So excited to find this sweet little tool! After wiping Win8's ugly stain off my HD I had no way of making ISO's contiguous for Easy2Boot/grub4dos. Step in DefragFS - voila! Problem solved, head-bashing-frustration averted :D --REVIEW-- Literally has one function, with 2 possible arguments: -a or -f You cant F it up even if you tried. And its FAST too! I only gave 4 stars because it doesnt seem to work on NTFS. (Maybe that was covered in the FAQ, oh well) Kicks ass on ext2/3/4 and fat32, no problems at all Thanks Dev!
Very good Software.