[CentOS] bring back sub shells

[mike.redan at bell.ca]

> For example, if i do run it with the & at the end it does what I want,
yet obviously (to my knowledge) you can't get back to the subshell
without killing it and restarting it. I have looked into the "screen"
shell utility, which for the most part does what I needed, however after
a few days the session had disappeared and I was not able to get back to
it from another machine/ssh session.

> Are there any other options?

screen works pretty well, I have some screen sessions that are more than
month old. When you connect from antoher machine, what command do you
type? It should be:

screen -r -x

That forces a reconnect, even if someone else is already connected.



On a side note: this is a nice way to collaborate on some work between a
few people who are not at the same physical location. Everyone SSH's in
to a machine, one person runs screen, the others run screen -r -x. you
are now all staring at the same terminal and can all work together.
Handy for teaching people.

Cheers,
Mike