This one's from Mike Haertel as described in:
http://tinyurl.com/arnnd
Thanks for Andrey for pointing this out. You can establish a two way pipe to a command in /srv:
$ cmd <[0=1] | echo 0 > /srv/name
and then access /srv/name to communicate with the command. As an example:
$ mail <[0=1] | echo 0 > /srv/mailcons $ con -l /srv/mailcons ... connected to mail until ^\ quit ... $ con -l /srv/mailcons ... connected again ...
will let you detach and re-attach to the pipe to a long-lived mail command.
Tim Newsham http://www.lava.net/~newsham/
