I'm reading about systemd and learning what I can, but I don't see an obvious answer to my question. I'm also reading the man pages for systemd and systemctl. When startup scripts were in /etc/init.d or some similar place, I could modify how daemons were started by modifying the scripts that invoked them. I can't find a way to do this. I want to turn up or down the debug level but I don't see how. Pointers for articles to read are appreciated as are simple recipes.
Thanks!
Tom