Hi there!

I would like to take an actual screenshot as a text file or just a string from a running screen session. I have a poor solution for this, but I want an other performance saver solution.

I'm using many programs in screen sessions with the following command:
in the .screenrc i've put the following:
The problem is that this line makes all screens to make a separated console.log logfile that is allways writing to disk in every 10 minutes and leaves old screen datas so their size is huge as well. I've 70-80 running screen sessions so its eating relatively a lot of performance, but currently thats the only way for me to look inside a screen session (from php page).

I just want to make a script like this:
Wich would give me back the screenshot as a string with a ~25row backward (and if needed 80col width) console size.

Is there any solution for this? Thanks!

Can you set the logfile on a per session basis?

Unfortunately no. If I don't missunderstanding your code. The screen isn't reacting to this, even if I'm using -S.

I should have maintained your own naming convention, sorry. I copied and pasted from one of my own scripts. After launching your screen session, it should have been:

where /log/file is the path to your log file.

It doesn't works for me, not writing any error message when I execute it, and the logfile leaves empty.

What I did:
touch logfile
screen -S test watch -n 5 cat otherfile
screen -r test -X logfile logfile

but nothing happens.

I can see why that wouldn't work - because you are setting the logfile after your command completes. The only way I can think that you could achieve this would be to start each screen with a series of commands (perhaps a small script)

screen -d -m -S $SCREEN_NAME
screen -r $SCREEN_NAME -X logfile /log/file
screen -r $SCREEN_NAME -X log #This is a toggle, so if logging is enabled by default this may disable it. Possibly not needed
screen -r $SCREEN_NAME -X stuff 'command^M'

where "^M" is the escape code (type it with ctrl-v ctrl-m)

Looks messy to me though. Perhaps someone else has a more elegant solution.

1 members found this post helpful.

Thanks, I've now understand it and works. I can turn the logging off after the logfile lookup by
screen -r $SCREEN_NAME -X log off
and remove the logfile
so its temporary and not writing to disk all the time.
But the only problem is, that I can't see the screen history for ~20rows backward, only the new rows after we starts the logging, but its close to the solution.