On 11/17/2016 07:14 AM, bruce wrote: > aha!! > > ok.. more testing, more insight into whats going on... > > the basic setup > client box (boxA) - running the screen session 'test' > > local box (boxB) - invokes the ssh/screen/remote app > > test I) > -running the test app on boxB that invokes the ssh/screen remote app > works if the test screen session on boxA is detached!!! > --the screen/remote is created by screen -r 'test' ... > > however, if i attach the test screen session on boxA > using screen -r 'test' > and then run the test app on boxB, > --using ssh -- screen -r 'test' ... > to run the remote within the named screen session... > > the process doesn't work.. . > -now, if I change the test app on BoxB to use > --using ssh -- screen -x 'test' ... <<<<<< > > then this works, even though the 'test' screen session is already attached!! > > ok.. this more or less makes sense.. > > So, it appears that I need some way of attaching to the named 'test' screen > session regardless of the session being attached/detached.. > > I can't see any attribute for screen that allows that.. but I might > simply be missing something.. Your description is very difficult to follow for me. Perhaps the formatting is mucked up. To run a process in the background WITHOUT attaching to the screen session, launch the process using screen -d -m -S sessname 'script parm1 parm2' This will cause screen to create a session named "sessname" and launch the script WITHOUT creating an attached session. We use this all the time to launch long running processes at boot time that require a console. If you want to attach to the session thus launched, use screen -r sessname Note that if you want to see the output of a screen session, you must attach to it OR you must have its output logged via the "-L" option (or by using "CTRL-A H" in the session) and you can then "tail -f" the log file. If you want to run in what is called "multi display" mode, then screen -x -r sessname should do it. The "-x" option allows you to attach a second (or third, or fourth) terminal to a session that already is attached to give you another terminal to communicate with it. You can think of it as a form of "screen sharing". I won't swear to it but I think if you use "-x" on a session that DOESN'T already have an attached terminal, then the "-x" is ignored and you attach normally (requiring the "CTRL-A d" to detach and leave the session running). ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - - - - Consciousness: that annoying time between naps. - ---------------------------------------------------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
