Simple use of 'tail' and 'grep'. Multiple conditions

Simple use of 'tail' and 'grep'. Multiple conditions I'm trying to read a log file which is being written to by a simple daemon. I would like to filter my "live" output to certain - multiple - "types".
Asked by: Guest \| Views: 224

Total answers/comments: 2

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Guest [Entry]

"Try:
tail -f log.txt | egrep 'WARN|ERROR'"

Guest [Entry]

"This also works (regular grep and escape the pipe character):

tail -f log.txt | grep 'WARN\|ERROR'"