applicationscatalinaconsolelogsmacos
According to tutorials, you'd export your Console.app event log by pressing the "Share" and using e.g. the Mail.app:
https://help.realmacsoftware.com/en/articles/1905631-how-to-save-console-logs-in-os-x
However, I want to export the event log to a plain text file instead of an extension app.
How can I do this?
The situation is like that: Applications can use the syslog(3) API and the asl(3) API to log messages, other data logged can come from the kernel or from the network. All of these messages are handed over to the syslog Daemon: syslogd(8). The syslogd now outputs log messages both the BSD way (it writes stuff into various basic log files like /var/log) and into a unified log message store (/var/log/asl.log).
If you want certain log messages not to appear in your log files (eg. you read logs like system.log by selecting them in Console.app), you will need to configure syslog.conf(5) like chiggsy said. If you want messages not to be stored in the asl database, you will need to configure asl.conf(5).
If, for example, you do not longer want Bonjour's (mDNSResponders) Log messages to be stored in the ASL db, you will need to add the following line to /etc/asl.conf :
? [= Sender mDNSResponder] ignore
… and then "gently" restart the syslogd by:
sudo killall -HUP syslogd
Now, messages from mDNSResponder will no longer appear when you go into Console.app's "all messages", but still exist within your logfiles.
Lastly, if you call syslog(1) from the command line, it acts as a nice frontend for querying the ASL db - you could for example ask it to show all messages from the Time Machine Backup starter that were logged in the last two hours by running:
syslog -k Facility -k Sender com.apple.backupd-auto -k Time ge −2h
…which explains, why the ASL db is handy: you can search for log files simultaneously in "all log files".
The format menu has a toggle to switch things for you.
Pressing shift + command + T will toggle the document to plain text mode.
You can also set the default format in the preference pane for the app.
Best Answer
You can send the logs as a plane text via mail. Just press Cmd-Shift-T in Mail.app before sending e-mail (or choose Menu -> Format -> Make Plane Text). This will clear all formatting in hole email and the recipient will receive the logs in proper format.
Cmd-A, Cmd-C in Console.app and Cmd-V in an empty text file as it was suggested by Seamus.
You can use Terminal.app and directly database were all the logs resides and even do not open Console.app
Press Ctrl-C to stop capturing process.