Date: Sun, 4 Nov 2007 11:28:58 +1100 From: "Gavin Cameron" <ggcameron@gmail.com> To: "deeptech71@gmail.com" <deeptech71@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: reverse grep Message-ID: <1efd1aec0711031728k1ccd8abepc49e2b0ec6e0695@mail.gmail.com> In-Reply-To: <472D0E7D.6050209@gmail.com> References: <472D0E7D.6050209@gmail.com>
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On 11/4/07, deeptech71@gmail.com <deeptech71@gmail.com> wrote: > > How is it possible to select lines that do NOT match a specific pattern? > > For example, I'm connecting to 192.168.123.254 via telnet (port 23), and > do tcpdump -nli rl0. This cyclic traffic, becuase when tcpdump outputs > something, the system sends me some packets, which generates output in > tcpdump, and vice versa. I want to filter out packets of telnet access > to the FreeBSD machine, that is, something like: > > tcpdump -nli rl0 | grep --non-matching-lines 192.168.123.254.23 grep -v man grep _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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