coproc better? #298
Description
bash4 has a feature called coproc. see tldp.org/LDP/abs/html/bashver4.html.
For some part of the code it could ease matters as opposed to put processes in the background and then polling.
Point of this issue:
- we need to find out whether it really eases matters
- where would coproc make sense?
- for Mac OS X -- still using bash3 -- we need old style calls. So is coproc worth the work?