ann kok wrote:
Hi
I have apache log file around 7.6G and record half year
Which program/command (perl, vi, or sed) is better to extract the data by date? and finally I can remove that big file and still keep the record.
I have problem when using vi and it uses up the server memory
Thank you for your help
If the extraction is simple regex matches you could use sed, but I'd recommend perl because it has additional features that you might need if the program becomes more complex and it is easier to write in the first place.
But first I'd check to see if any of the available log processing programs will already do what you want. If you are looking for summaries with counts by page/time interval/client IP, etc. they may do what you want. I like analog because it is very fast and can deal with multiple files even if the times overlap and can uncompress them on the fly http://www.analog.cx/ or download rpm from http://www.iddl.vt.edu/~jackie/analog/. Or you might like webalizer if you just have one server/file.