I have a big log file in linux (aprox 700MB), and i want to extract from that log all the characters that contains eg: http://mywebsite/link1/2.html

How do i do that ?

It takes too much time to search with vi with /string because I have alot of access logs on my http://mywebsite/link1/2.html with alot of IP's and I want to extract all the IP's that accessed this link: http://mywebsite/link1/2.html

grep in this case would be good

type
man grep

otherwise you can just use
cat logfile | grep "http://mywebsite/link1/2.html"

Ok, ok... this is good. But I want to filter more, I want to extract the "http://mywebsite/link1/2.html" from [20/Apr/2009:08:22:31 +0300] to [20/Apr/2009:22:00:00 +0300]
From 08:22:31 to 22:00.

How do I do that ?

Please give me a section of log file.

213.233.92.150 - - [20/Apr/2009:08:22:31 +0300] "GET /xxx/css/xxx.css HTTP/1.1" 200 7171 "http://mywebsite/link1/2.html" "HTC_TyTN_II Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11)"

so in that case just do multiple greps in it or you could read up about regular expressions.

cat logfile | grep "http://mywebsite/link1/2.html" | grep "[20/Apr/2009"

I have too many logs in the same date, in the same hour, in the same minute. I cannot copy them all because the scroll bar of the putty is too "large" and I cannot copy the whole log. Any hints ?

This is so annoying, there are too many logs, I can't even grep per minute because there are WAY TOO MANY !

Even if i do: cat access_log.2 | grep "http://mysite" | grep "20/Apr/2009:09:1" in order to have all the logs in the 2009 hour 09 and minute 1x it dosen't show me the whole logs because there are too many, and i need too export them all.

And please don't tell me to do cat access_log.2 | grep "http://mysite" | grep "20/Apr/2009:09:11" and then ...2009:09:12 and then 2009:09:13 'cause I'm gonna go crazy. I need to export the logs from hour 9:00 to hour 22:00, so please.

No this is not the way you do it use a regular expression in grep and should show you the list ebcause [0-9] for seconds and minutes, also look at things like sed and you select sections out of log.

This is an apache access log, use any utility for parsing this log, perl has got so many modules to do so check them out.

Redirect the output to a file, or add another pipe to "more" or "less"

it will be slow you are going to do multiple greps on a 700++MB file.

Hi,

Look at 'Advanced Bash-Scripting Guide' to learn more about scripting!

You could look at the 'Tutorial' section of 'Slackware-Links'. More than just Slackware® links!