Am 11. Aug, 2007 schw�tzte der.hans so:
moin moin,
OK, I have a way of doing this from inside screen.
At a screen command prompt ( <ctrl>-a : ), use the following:
at \# stuff "pwd^m"
This is an at command ( search in the manpage for 'altscreen' and then
page down to the next item ).
The '#' needs to be escaped and tells at to run against every other window
number in the screen session, stuff says to shove the subsequent command
into a buffer. The part in the quotes is the command to run.
I just learned this from someone who wrote a book on GNU/screen :).
http://www.lulu.com/content/491211
ciao,
der.hans
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/
# "If it's not a toy you're looking at it wrong." -- der.hans
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