Other processes typically dispatched by boot init are daemons and shells. Up to 1024 characters per entry are permitted. It is expected that they will contain some information about the line such as the location.
Duplicate entries cause an error message to be issued, but are otherwise ignored.
Run levels correspond to a configuration of processes in the system where each process spawned by boot init is assigned one or more run levels in which it is allowed to exist. Run levels are represented by a number in the range 0 through 6 . You can specify multiple run levels for a process by entering more than one run level value in any combination. Three other values, a , b and c , can also appear in the rstate field, even though they are not true run levels. Also, a request for the execution of any of these processes does not change the current numeric run level.