How can I find the runlevel of the processes of /etc/init.d?

Question

I want to find out in which runlevel the files of /etc/init.d‍ are started. Has someone any idea? I thought there might be the option to find it with the find command

Answer 1

Run:

cd /etc/init.d
grep Default-Start *

Results:

dbus:# Default-Start:     2 3 4 5
docker:# Default-Start:      2 3 4 5
gdomap:# Default-Start:     2 3 4 5
...

Just to note, from man runlevel:

   ┌─────────┬───────────────────┐
   │Runlevel │ Target            │
   ├─────────┼───────────────────┤
   │0        │ poweroff.target   │
   ├─────────┼───────────────────┤
   │1        │ rescue.target     │
   ├─────────┼───────────────────┤
   │2, 3, 4  │ multi-user.target │
   ├─────────┼───────────────────┤
   │5        │ graphical.target  │
   ├─────────┼───────────────────┤
   │6        │ reboot.target     │
   └─────────┴───────────────────┘