Re: scripting screen windowlist?

[Gerald Young]

Brian Kroth wrote:
> Is there a way to dump the
> output of "windowlist" to a file, or some other mechanism that I could
> get at this data?  I've tried with logging and hardcopy but they both
> dump the underlying window contents.
> 

You could nest that screen session inside another screen session.
Let's call the session you already have "old" and the other "new".
You would first detach from "old" then do:
screen -e'^Ss' -mS new screen -r old

The useful thing about a nested screen session is that the ouput of
"old" session will be the input of "new", and therefore it will end up in
the display/scrollback buffer of it.

So if you bring the windowlist for "old" and do a "hardcopy" on "new",
it will capture the windowlist.

There's another problem though, if you try to do bring the windowlist
and then do a hardcopy from a single screen script the windowlist
wont appear quickly enough and hardcopy will capture the underlying
window instead.

There needs to be a wait between sending th command to bring up
the windowlist and doing "hardcopy". "sleep" doesnt work when
"source"ing screen scripts. So I split the script in two and used
"idle" instead:

So screen_script_1 would be:
stuff "^A\""
idle 1 source "/home/gerald/screenrc.d/screen_script_1"

And screen_script_2:
hardcopy "/home/gerald/screenrc.d/dumpwinlist"
idle 0
stuff "^["

Another way would be to do the commands from bash (using
screen -X), and use the "sleep" command it has instead.
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