#!/usr/bin/env bash

tmp=$(mktemp --tmpdir -d janitor-bash-example.XXXXX)
mkfifo "$tmp/janitor"

janitor < "$tmp/janitor" &

echo "d$tmp" > "$tmp/janitor"

tmpf=$(mktemp --tmpdir janitor-bash-example-f.XXXXX)

echo "f$tmpf" > "$tmp/janitor"

kill -KILL $$