#!/usr/bin/env bash
# A specialized version of
# http://www.bashcookbook.com/bashinfo/source/bash-4.0/examples/scripts/timeout3
# Note the non-standard use of sleep 0.1, which is out
# of standard but works on OS X and Ubuntu
# Original design by Dmitry V Golovashkin <Dmitry.Golovashkin@sas.com>
(
    ((t = 50))

    while ((t > 0)); do
        sleep 0.1
        kill -0 $$ || exit 0
        ((t -= 1))
    done

    # Be nice, post SIGTERM first.
    # The 'exit 0' below will be executed if any preceeding command fails.
    kill -s SIGTERM $$ && kill -0 $$ || exit 0
    sleep $delay
    kill -s SIGKILL $$
) 2> /dev/null &

exec "$@"