If ever you need to sort log messages by their log level yo may need to change the default output format of the syslog.
For rsyslog it’s located in /etc/rsyslogd.conf. Add these lines after the line “$ActionFileDefaultTemplate RSYSLOG_TraditionalFileFormat” :
$template precise,”%timegenerated% %HOSTNAME% {%syslogpriority%,%syslogfacility%} %syslogtag% %msg%\n”
$ActionFileDefaultTemplate precise
Then restart rsyslogd:
sudo service rsyslog restart
#rsyslogd #syslog #log #loglevel #facilities