[erlang-questions] Report errors when using "-detached" option

[ERLANG]

Hi List,

Sometimes,  I've to start my erlang applications with "-detached"  
option.
Suppose that an application needs a directory somewhere to be able to  
run.
If this directory is missing, nothing is reported in the shell du to  
the "-detached" option.

So my question is related to how to report any error when using "- 
detached"?

My erlang apps are usually started from shell scripts. It'll be very  
helpful if the erlang app can report
errors with an "exit" code status different from 0. The shell script  
will use this exit code to throw
the error to a higher level.

I'm not interested to use the error logger to solve this problem.

Regards
Y.