Date: Wed, 24 Aug 2005 11:41:26 -0500 From: "antenneX" <antennex@swbell.net> To: "Giorgos Keramidas" <keramida@ceid.upatras.gr> Cc: freebsd-questions@freebsd.org Subject: Re: Script help using "cut" Message-ID: <000801c5a8ca$aca01680$0200000a@SAGEAME> References: <041801c5a84c$1a196560$0200000a@SAGEAME><042701c5a8ab$88debd60$0200000a@SAGEAME> <20050824130412.GB877@orion.daedalusnetworks.priv>
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----- Original Message ----- From: "Giorgos Keramidas" <keramida@ceid.upatras.gr> To: "antenneX" <antennex@swbell.net> Cc: <freebsd-questions@freebsd.org> Sent: Wednesday, August 24, 2005 8:04 AM Subject: Re: Script help using "cut" > On 2005-08-24 07:58, antenneX <antennex@swbell.net> wrote: > >"antenneX" <antennex@swbell.net> wrote: > >>"Giorgos Keramidas" <keramida@ceid.upatras.gr> wrote: > >>>> (envelope-from spammer@badguy.com) > >>>> (envelope-from spammer2@badguy2.com) > >>>> (envelope-from spammer3@badguy3.com) > >>>> > >>>> All ideas appreciated.... > >>> > >>> $ awk '{print $2}' tmpfile | sed -e 's/)[[:space:]]*$//' | sort | uniq > > > > Just woke up this morning and realized I needed to chop off more -- > > everything except the domain. > > > > So, instead of spammer@badguy.com I need the result badguy.com > > > > How could the above awk line be expanded to chop off the username@ > > portion as well? > > sed(1) can do more than one substitutions in one line: > > sed -e 's/)[[:space:]]*$//' -e 's/^.*@//' > > or you can use as complex regular expressions as necessary to cut > specific parts of the line: > > sed -e 's/^.*@\([^)]*\))[[:space:]]*$/\1/' > In fact, my very next script line uses sed(1) to add the TAB and the RHS to the sendmail access file: sed 's/$/ REJECT/g' tmpfile >> /etc/mail/access I'll bet my line could be incorporated with yours.
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