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Full Discussion: Grep Ip address
Top Forums UNIX for Dummies Questions & Answers Grep Ip address Post 302295039 by forrie on Friday 6th of March 2009 11:22:44 AM
Old 03-06-2009
Searching for instance of specific IP in a file

I have a similar question, so I'll post it here.

I have a script that blocks IPs, but checks first to see if the given IP exists in a file before proceeding. In one case, it's /etc/mail/access (Sendmail). The format is generally:

11.22.33 REJECT or SOME MESSAGE

Now, say I log an IP of 11.22.3, when I egrep for it, it will also match 11.22.33, which I don't want.

So I'm trying to figure out how to limit the egrep search for only that IP - establishing a boundary on the search, which I'm not able to figure out.


thanks.

Last edited by forrie; 03-06-2009 at 12:23 PM.. Reason: typo
 

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ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
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