Search for NullPointerException in Log

Question

Can anyone guide/paste a command to search for all NullPointerExceptions in a log file. As developers, we do watch logs for such issues and logs can be huge.

I am using bash and wants to find all NullPointerExceptions in log file, with above and below 10 lines, seperated by any specific design "------------------------------" like this.

Please, share it, much helpful, pretty newbie to *nix

Answer 1

You can try this grep,

grep -A10 -B10 'NullPointerExceptions' your.log