Create a subset of ImageNet (ILSVRC2012) for debug

imagenet_subset.sh

echo "Create a subset of ImageNet of 2 images per class for debug"

SOURCE="data/ILSVRC2012/train"
DEST="data/ILSVRC2012_samples/train"

SOURCE="data/ILSVRC2012/validation"
DEST="data/ILSVRC2012_samples/validation"

cd "$SOURCE"
for file in */ ; do
  echo "copying subdirectory $file to $DEST"
  mkdir -p "${DEST}/${file}"
  find "$file" -maxdepth 1 -type f -print0 | head -z -n 2 | xargs -0 -r -- cp -t "${DEST}/${file}" --
done