http://superuser.com/questions/511804/in-ubuntu-is-there-a-command-to-show-a-list-of-all-autostart-services
for SysV
remove service
$ update-rc.d -f apache2 remove
add service
$ update-rc.d apache2 defaults
list service
$ ls /etc/rc*.d
or service --status-all
for Upstart
ref: /etc/init