#!/bin/bash
# Create train/val directories for per-letter binary datasets:
# data/asl/train/{A,Not_A,...,Z,Not_Z} and same under val/

set -euo pipefail

for split in train val; do
  for L in {A..Z}; do
    mkdir -p "data/asl/$split/$L"
    mkdir -p "data/asl/$split/Not_$L"
  done
done

echo "✅ Created data/asl/train|val/{A,Not_A,...,Z,Not_Z}"