I have an OpenEmbedded environment using bitbake to do some builds. I wanted to get something \"interactive\" going on where bitbake would pause and ask for input then continue
No, I don't believe such a mechanism exists. But you could do something like
"echo "foo = \"bar\"" >local.conf
Not sure that will solve your particular problem or not. Also, there is a mechanism for local site-wide variables: if you have a 'site.conf' file in your home directory under a directory called .oe, bitbake will read that and apply those variables to the global environment for every build. Maybe that would help? You didn't specify exactly what problem you are trying to solve, there might be better ways.