How to grep a log for multiline errors
I just found myself in the position to have to grep an OctoPrint log file for error log entries with attached Python stack traces. I wanted to not only get the starting line where the exception log output starts, but the full stack trace up until the next regular log line. The format of the lines in octoprint.log is a simple %(asctime)s - %(name)s - %(levelname)s - %(message)s, so a log with an error and attached exception looks like this:...