Prints out in which files the match ("Exception") was found:
grep -r -l Exception /var/log/all.log.*
Print 30 lines surrounding match ("Exception):
cat /var/log/all.log.20 | grep -C 30 "Exception"
Prints out in which files the match ("Exception") was found:
grep -r -l Exception /var/log/all.log.*
Print 30 lines surrounding match ("Exception):
cat /var/log/all.log.20 | grep -C 30 "Exception"