Exception query for daily maintenance of the project

Log search

1. Enter the log directory, for example: cd /home/tomcat/logs/
2. Show catalina log file, for example: less catalina.out
3. Capital G, jump to the end of the log file
4. ctrl+c interrupt log output
5. enter? +Search keywords, for example: ?Excepiton Enter to search for keywords Exception
6. Lowercase n finds the previous one, uppercase N finds the next