Hi,
     If you just want to get a list of all the sub-folders matching some mask then something like:

for thing in folder*/subFolder*; do echo $thing; done

should do what you want.

Kind Regards
Matthew

> I'm running fsl command on several folders using loop option as follow:
>
> for dir in Study* ; do
> fslmaths ${dir}/img1.nii -add ${dir}/img2.nii ${dir}/out.nii
> done
>
> How can I run the loop on 2 hierarchy?
> i.e. all Study_XX folders within Sub_XX folders?
>
> Many thanks
> Moran