(Argh, forsaken by Gmail, sorry.) Continued: I tried on both Ubuntu 14.04.4 updates version (Screen version 4.01.00devel (GNU) 2-May-06) as well as a fresh clone from master (Screen version 4.99.0 (build on Jul 29 2016 17:31:06)
I was able to reproduce this problem with the following lines in my .screenrc backtick 1 0 0 bash -ilc "while true ; do sleep 5 ; date ; done" hardstatus alwayslastline "%1`" Is there any way to make this backtick program exit on screen exit? Thanks Vince On Fri, Jul 29, 2016 at 5:44 PM, Vincent Newell <vince.new...@gmail.com> wrote: > To whomever's listening - > > I am trying to create indicator to display a system state string. This > string comes from some software following a PUB-SUB architecture. My first > thought was to use backtick to callout periodically to 'poll' the state, > but the act of initializing, subscribing, getting a message, and > unsubscribing has a lot of overhead. Since my software already supports > PUB-SUB I was hoping backtick supports a background process. And, just my > luck! It does! > > "If both the lifespan and the autorefresh parameters are zero, the > backtick program is expected to stay in the background and generate output > once in a while. In this case, the command is executed right away and > screen stores the last line of output. If a new line gets printed screen > will automatically refresh the hardstatus or the captions." > > However, it seems like the background command does not exit when screen > exits. > > I tried on both Ubuntu 14.04.4 updates > >
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