## $3 - (optional) the number of parallel processes to run for grep.
get_cache_files() {
local max_parallel=${3-16}
- find $2 -maxdepth 2 -type d | xargs -P $max_parallel -n 1 grep -ERl "^KEY:.*$1" | sort -u
+ find $2 -maxdepth 2 -type d | xargs -P $max_parallel -n 1 grep -E Rl "^KEY:.*$1" | sort -u
}
## Removes an item from the given cache zone.