screen -Logfile option does not seem to work

Question

I can do this:

mkdir tmp
cd tmp
screen -L some_command

and I get a screenlog.0 file in the local directory.

But when I do this, no log exists:

screen -Logfile /tmp/log.txt

Giving a full filename does not work? What else would work?

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.4 LTS
Release:    22.04
Codename:   jammy

-L and -Logfile are two different options, and neither implies the other, so you still need to add -L to tell screen to log to a file: screen -L -Logfile /tmp/log.txt — kos, Commented Jun 13 at 22:21
Wow. That is just lame. I mean, I am telling it about a log file. And I would do this while not wanting to log. So, I need to say: "Oh, and where I told you to log. You need to log." Just, wow. — Ray Kiddy, Commented Jun 15 at 5:02

kos · Accepted Answer · 2024-06-15 09:15:20Z

1

Apparently if I use the -Logfile <file> option to tell it where to log, I need to ALSO use the -L option.

edited Jun 15 at 9:15

kos

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answered Jun 15 at 5:11

Ray Kiddy

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When you're inside a screen session, you can start / stop logging using Ctr+A / Shift+H. Being able to specify a log file without -L allows to start a session without logging right away, and to start logging, when needed, to a specific file.
– kos
Commented Jun 15 at 9:12

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