# here I put the commands to run, so I can decide to call them later
run_commands() {
  xmodmap ~/.Xmodmap
  fbsetbg -l
  mrxvt &
}

# I feel like this 'exec' command is totally inappropriate, but the 'wait'
# command doesn't work without it
exec /usr/local/bin/fluxbox -log ~/.fluxbox/log &
fbpid=$!

# wait for 1 second, to make sure things start after fluxbox
sleep 1
case "x$1" in x) run_commands;; esac

# if fluxbox crashes, that's ok -- we'll restart another one
# if this loops, I can always use control-alt-backspace
wait $fbpid || exec $0 norun