How to remove lines from a file

doza · 04-27-2005, 11:11 AM

I am trying to go through an apache log file that is fairly large. A lot of the entries in here are from Microsoft worms making the rounds. What is a quick way for me to remove those entries from the logs once they are already there? I've been using something like:

cat logfile | grep -v "worm_string" > cleanlogfile

There must be a faster way to do this. Maybe with sed and awk? Unfortunately I am not too proficient with those yet.

Any help is greatly appreciated.

Thanks

win32sux · 04-27-2005, 11:35 AM

just a thought: maybe you can speed it up a little bit by not using cat and instead using grep directly... it might save some cpu cycles at least... ;-)

Code:

grep -v "worm_string" logfile > cleanlogfile

PTrenholme · 04-27-2005, 11:59 AM

You might also look at the "logwatch" app (if you've installed it) and configure it to only send you the parts of the log(s) you want to see.