Dear FSL experts, I have been pre-processing my dwi data with bedpostx following the useful steps of the FSL web. Instead of using gui, I have used the following command: *#bedpostx patients cd ~/Escritorio/trabajar_rosalia_s cd patients lst=`find -name data.nii.gz` for i in $lst; do dir=`dirname $i` cd $dir bedpostx . -b 1500 cd .. done;* But, in every bedpostx folder, for every subject, I have found the monitor text file with the following message: ......... echo For some reason the bedpostX process DOES NOT appear echo to have successfully completed. Please examine your echo results carefully. else echo All slices processed fi I am not able to guess what has happened with the pre-processing, where is the mistake..... I would be very grateful is any of your could give me a help with this problem. Best regards, Rosalia Dacosta Aguayo Clinical Neuropsychologist Department of Psychobiology and Clinical Psychiatry University of Barcelona Pg. Vall d'Hebron 171 08035 Barcelona, Catalonia, Spain