Linux screen tricks: recording the day

Here's how to record screen logs.

The first method:

Add option-L at startup (Turn on output logging.), screenlog.0 files are generated in the current directory.

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Screen-l-DMS test means to start a session that is in disconnected mode at the beginning, and the name of the session is test.

Screen-r Test connects the session, and all screen output in the session is logged to the screenlog.0 file.

The second method:

No option-l, after starting, press CTRL + A under Screen session H, also generate screenlog.0 files in the current directory.

The first time you press CTRL + A, the lower left corner of the screen prompts creating logfile "screenlog.0"., Start logging.

Press CTRL + A again, the lower left corner of the screen will prompt logfile "screenlog.0" closed., stop logging.

There is a drawback to the above two methods: When creating multiple screen sessions, each session logs the log to the screenlog.0 file. The content in the screenlog.0 is a bit confusing.

As a workaround, let each screen session window have a separate log file.

Add the following line at the end of the screen configuration file/ETC/SCREENRC:

Logfile/tmp/screenlog_%t.log

%t refers to the name of the Windows window, corresponding to the-t parameter of screen. So when we start screen, we want to specify the name of the window, for example:

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Screen-l-T WINDOW1-DMS test means the test session is started and the window name of the test session is Window1. The screen log is recorded in/tmp/screenlog_window1.log. If you start without the-l parameter, press CTRL + A under Screen session H, the log will also be recorded in/tmp/screenlog_window1.log.

[Email protected] ~]# Screen-ls

There is screens on:

67495.test (Detached)

67752.test (Detached)

2 Sockets in/var/run/screen/s-root.

[Email protected] ~]# screen-r 67495

After entering the 67495 window, execute exit to exit the current window. When all the windows in a session are ended, the session is automatically terminated, and the command line prompts [screen is terminating]. At this point, only one session is viewed:

[Email protected] ~]# Screen-ls

There is a screens on:

67752.test (Detached)

1 Socket in/var/run/screen/s-root.

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Linux screen tricks: recording the day