parleer

# Attempt to support older BASH without mapfile/readarray
if ! type -t readarray >/dev/null; then
  # Very minimal readarray implementation using read. 
  readarray() {
    # _exit "readarray function"
    local cmd opt t v=MAPFILE
    while [ -n "$1" ]; do
      case "$1" in
      -h|--help) echo "minimal substitute readarray for older bash"; exit; ;;