I wanted a small test data set consisting of some files in folders, heres a quick shell snippet to generate some:
for dir in {1..100}; do
for dir2 in {a..f}; do
folder=dir-${dir}/dir-${dir2}; mkdir -p ${folder}
echo "A file with some text" > $folder/`pwgen -A10`.txt
done
done
Every time you run it you get more files, but the folders remain the same. It needs bash 3 or greater to run and creates folder like:
./dir-1/dir-a/euciphel.txt
./dir-1/dir-b/aineijof.txt
./dir-1/dir-c/naungeix.txt
./dir-1/dir-d/oopoolah.txt
./dir-1/dir-e/epahgome.txt
./dir-1/dir-f/ahshicia.txt
./dir-2/dir-a/busaenga.txt
./dir-2/dir-b/waepheep.txt
./dir-2/dir-c/jaeyahbi.txt
./dir-2/dir-d/biejoong.txt