If I run the command "service –status-all", each (running?) service is listed in column format. The first column has either a [ ? ], [ + ], or [ – ] before the service name. What does this column represent? What does ?, +, and – mean?
Sorry if this is a simple question. I searched online for ~30 minutes before just coming here and asking.
I even found this: What do the symbols in service –status-all mean? where the "correct" answer states "It draws a [ + ] or [ – ] depending on whether the exit status was zero or nonzero, respectively.".
So, I guess my new question is what does status zero and nonzero(!?!?!) mean?