file sorting into sub folder

Hello,inside my folder i have files in which the first the name before _0 or _1 represent the category. how could i recognize all the files of the same category and put them into their own a new sub folder.

Thanks

Answer 1

[Jos (10584)]

Why use matlab for this? Just call the OS

mkdir('cat_1')
system('mv *_1.txt cat_1/.') % linux
dos('move *_1.txt cat_1\.;) % windows

but, you might take a look at movefile