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From: | Michael Grant |
Subject: | reading an environment variable from screen |
Date: | Wed, 16 Dec 2020 15:08:45 +0000 |
When I reattach to screen, the SSH_AUTH_SOCK is wrong. I often ssh in and run screen simultaneously on a laptop and desktop. So I can’t use the trick of symlinking something to /tmp/ssh-xxxxxxxxxx. Is there some way to interrogate screen to tell me what the contents of an environment variable are? Running this in a shell inside of screen: screen -S $STY -X colon 'exec |echo $SSH_AUTH_SOCK\r' gives me the info I’m looking for, but it pushes it out to the display. I’m so close! How can I capture this output? My goal here is to create a sort of ssh/scp pre-command as a shell alias that probes screen each time and sets the SSH_AUTH_SOCK variable correctly. |
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