moin moin,
during Colin's great presentation on screen the question of running a
command in every window of a screen instance came up.
While I think tools like clusterssh and dsh are generally better tools
there certainly might be specific reasons for using screen instead.
clusterssh - administer multiple ssh or rsh shells simultaneously
dsh - dancer's shell, or distributed shell
See the bottom of this particular faq,
http://aperiodic.net/screen/faq,
about how to send commands to particular windows.
screen -S PLUG -p0 -X exec top
screen -S PLUG -p1 -X exec top
I was able to run those and have them succeed to a disconnnected screen
session, to a connected screen session from another screen session and
from external to a screen session and also from within the affected screen
session.
I was not able to figure out how to get a window list from outside the
screen session. In googling I came up with a couple of threads claiming
it's impossible to get the list to STDOUT. They suggest instead writing it
to a file, but I didn't see any info on how to do it.
Maybe the screen-scraping Colin mentioned could be used to grab the output
from <ctrl>-a " and build a list into a log. Googling for 'screen
screen-scraping' doesn't really pull back what I was searching for :).
ciao,
der.hans
--
# https://www.LuftHans.com/ http://www.CiscoLearning.org/
# ... All true wisdom is found on T-shirts.
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