Shell Programming and Scripting

Imagine a user-defined function.

Code:

func() { /usr/pkg/bin/program long-string-of-switches-and-configs  "$@" ;}

I execute it once. Then background it.
I execute another instance. Then bg it.

Code:

func unique-user-input
^Z
func unique-user-input
^Z

First I view with ps

Code:

ps wwaux

Here I can see the stdin for each instance.

Then to get the job id's I view with jobs command

Code:

jobs -l

Here I only see "$@", not stdin.

To my knowledge, ps cannot show the job id's. And jobs will not show the user input. Hence I currently use use both ps and jobs commands in order to distinguish and bg/fg the instances. There must be a smarter way.

I would like to know
- why I cannot see stdin in jobs command output (theory)
and welcome suggestions
- how I can distinguish instances and bg/fg without having to check both ps and jobs (practice).