sub-process changing value available to parent process?

[Sylvain Viart]

Hi,

This idea come back again. I would like to be able to modify bash
variable from a child program.

As the child program has no access to parent's variable space, one
solution is that the child-program
ouputs bash valid code and the parent script uses eval() so the current
env is modified.

We see this behavior when using ssh-agent for example.

I would like to be able to pass modified value to the shell parent
without using eval.

What shared environment could I use to ensure safe and efficient
communication from a sub program with it's parent script?


Regards,
Sylvain.

-- 
Sylvain Viart - GNU/Linux Sysadmin/Developer/DevOps - France