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Old 02-24-2003, 11:00 AM   #1
Registered: Dec 2002
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saving log information to a separate file


I want to run 'grep' to parse out thousands of log files based on an IP address, and save this output to another file so that I can export it to another server. How would I go about doing this? Is there a command i can issue to work in conjunction with grep that will save this output to a separate file?

Old 02-24-2003, 11:57 AM   #2
Registered: Feb 2002
Location: Grenoble
Distribution: Debian
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You can use
cat logfile|grep something >newfile
cat logfile|grep something >>newfile
(>> adds at the end, >erases old file content)
Old 02-24-2003, 12:04 PM   #3
Registered: Dec 2002
Posts: 63

Original Poster
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This also worked for me.

[root@xxxx]# grep 'something' 'logfile' > newfile

Good to know about the difference between '>>' and '>'.


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