gistfile1.md

$ cat makefile

server:
	drush rs --watchdog
clock:
	while true; do drush cron -v; sleep 10s; done

$ cat Procfile

web: make server
clock: make clock

$ foreman start

web.1     | started with pid 32669
clock.1   | started with pid 32671
web.1     | drush rs --watchdog
clock.1   | while true; do drush cron -v; sleep 10s; done
clock.1   | Initialized Drupal 7.12 root directory at                               [notice]
...

Ref: Unix process model - forman man page