set -ex
echo >&2 "$0: invoked as $0 $*"
exec 3<&0 4>&1 5>&2 >&2 </dev/null
-exec xterm -T netns -e unshare -n -- sh -xc '
+exec xterm -geometry -0+0 -T netns -e unshare -n -- sh -xc '
"$@" <&3 >&4 2>&5 &
sleep 0.1
- ping 192.0.2.1 &
env - bash -i
' x "$@"