TEST_PATH := ./tests $(TEST_PATH): for dir in {a1,a2}/{b1,b2,b3}/{c1,c2,c3}; do \ dirpath=$(TEST_PATH)/$${dir}; \ mkdir -p $${dirpath}; \ dd if=/dev/urandom of=$${dirpath}/$$RANDOM bs=1 count=$$(( RANDOM+1024 )); \ done clear: rm -rf $(TEST_PATH)