As part of my work on the A10 Debian image I needed a way to list all configured services. RedHat/Fedora has always had a way to do that with chkconfig --list (not that it works anymore with systemd). Now I know that the following command works in Debian:
sysv-rc-conf --list
But first you need to install the package:
apt-get install sysv-rc-conf
Here is a link to the
man page