#!/bin/sh
set -x
X="$(pgrep -f ".reaper $1")"
grep -q "^proc " /proc/$X/mounts || \
    sudo nsenter -t "$X" -m -p -r -w mount -t proc proc /proc
ROOT="$(sudo nsenter -t "$X" -m -p -r -w mount | \
	     awk -v S="$1" '$1==S{print $3;exit;}')"
sudo nsenter -t "$X" -n -m -p -r -w -u -C /bin/bash