Sample output from defragfs(may differ due to the new program version):


root@mail:# defragfs /mnt/Data/Download/share/ -f
Statistics for /mnt/Data/Download/share/
Total Files:                    377
Fragmented Files:               36
File Fragmentation Rate:        9.54907161803713%
Avg File Fragments:             3.39522546419098
Most Fragmented Files(for details see /tmp/frags-result-before):
/mnt/Data/Download/share/Master_Dissertation_1st.7z: 224 extents found
/mnt/Data/Download/share/Master Thesis20.doc: 219 extents found
/mnt/Data/Download/share/Master Thesis17.doc: 116 extents found
/mnt/Data/Download/share/Master Thesis16.doc: 80 extents found
/mnt/Data/Download/share/Master Thesis19.doc: 57 extents found
/mnt/Data/Download/share/Master Thesis18.doc: 45 extents found
/mnt/Data/Download/share/Submit_3/Master_Dissertation.doc: 32 extents found
/mnt/Data/Download/share/Master_Dissertation.doc: 25 extents found
/mnt/Data/Download/share/Master Thesis21.doc: 22 extents found
/mnt/Data/Download/share/Submit_2.7z: 20 extents found
You need a defragmentation!
Please specify the percentage of files should be defrag(1-100, default 20):10
Preparing defragmentation, please wait...
Files to be defragmented:37
You need AT LEAST 9118720 Bytes temporarily used for defragmentation(at the directory where you specified), continue(Y/N)?[N] y
OK, please drink a cup of tea and wait...
#####################################Done!
Now lets see the results...
Statistics for /mnt/Data/Download/share/
Total Files:                    377
Fragmented Files:               12
File Fragmentation Rate:        3.18302387267904%
Avg File Fragments:             1.47214854111406
Most Fragmented Files(for details see /tmp/frags-result-after):
/mnt/Data/Download/share/Master Thesis20.doc: 31 extents found
/mnt/Data/Download/share/Master Thesis19.doc: 24 extents found
/mnt/Data/Download/share/Master Thesis16.doc: 23 extents found
/mnt/Data/Download/share/Master Thesis17.doc: 21 extents found
/mnt/Data/Download/share/Master Thesis21.doc: 18 extents found
/mnt/Data/Download/share/Master Thesis18.doc: 17 extents found
/mnt/Data/Download/share/Submit_3/Master_Dissertation.doc: 15 extents found
/mnt/Data/Download/share/Master_Dissertation.doc: 13 extents found
/mnt/Data/Download/share/Submit_2.7z: 12 extents found
/mnt/Data/Download/share/Master_Dissertation_1st.7z: 8 extents found