Comments on: Maintaining Screen Output

By: etbe

etbe — Tue, 23 Mar 2010 03:20:42 +0000

Iustin Pop: Thanks for that. The talk was interesting and Ganeti sounds like a very useful product and I will keep it in mind for future projects. I don’t think it solves my needs though, all I want is a basic way of maintaining the console and screen seems to do the job well – particularly now that I’ve been advised how to use the “zombie” command.

I may use libvirt/virt-manager as suggested by Aigars if I find screen to be inadequate. I really want something relatively light-weight and Ganati seems to be bigger than I desire.

By: Iustin Pop

Iustin Pop — Mon, 22 Mar 2010 11:50:21 +0000

etbe: There are, as for any DebConf talks… Check the links on this page: https://penta.debconf.org/dc9_schedule/events/363.en.html

By: etbe

etbe — Sat, 20 Mar 2010 21:29:39 +0000

Iustin Pop: Sounds interesting, is it possible to download videos of those talks?

Martijn: Thanks for that suggestion, I’ve edited your comment to have the correct data. I’m not sure why it didn’t work when you typed it in, once again it’s “\033\015″. As for the time, I’m running my blog in Eastern Australia non-daylight savings time – that is +1000.

jshare: Thanks for that. Not only is your suggestion easier to write in a blog comment but it’s more convenient to type when running screen (IMHO).

By: jshare

jshare — Fri, 19 Mar 2010 07:56:09 +0000

Martijn,
I just use “zombie kr” (for “k”ill or “r”estart). :)

By: Martijn Grendelman

Martijn Grendelman — Thu, 18 Mar 2010 11:39:10 +0000

Hm, your blog mangled my comment a little bit. The keys that are arguments to the ‘zombie’ command were actually octal representations, preceded by a backslash and a zero. Let me try to work around this:

zombie “\033\015″

And what’s wrong with the time here? The comment before mine was posted at 12:49 pm, and mine at 9:33 pm :-)

Regards,
Martijn.

By: Martijn Grendelman

Martijn Grendelman — Thu, 18 Mar 2010 11:33:16 +0000

Hi,

There are two more options to keep screen output:
- You can tell sceen to log all output to a file, with the -L option
- If you put

zombie “3315″

in your .screenrc, screen will not terminate upon exit of the shell script, but instead it will print a line, that looks something like:

=== Command terminated with signal 15 (Thu Mar 18 12:29:57 2010) ===

and keep the screen alive, so you can attach to it just like when the program was still running. If you then press ESC (33), screen will exit, or if you hit enter (15) screen will try to restart the program it was running before.

Useful?

Regards,
Martijn.