deas

#!/bin/sh
depth=$1
jq 'def scrub(n):
  if type == "object" then
    if n == 0 then empty
    else map_values(scrub(n - 1)) | with_entries(select(.value != null))
    end
  elif type == "array" then
    if n == 0 then empty
    else map(scrub(n - 1))