Comments on: Unix Sed Tutorial: How To Execute Multiple Sed Commands http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/ Guides, HowTos and Tips for Technology Geeks Thu, 09 Feb 2012 13:04:00 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: frankhuang http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-70057 frankhuang Wed, 17 Nov 2010 07:10:34 +0000 http://www.thegeekstuff.com/?p=2306#comment-70057 The command sed '1~50s/a/x/g' filename.txt >out.txt also works The command
sed ’1~50s/a/x/g’ filename.txt >out.txt
also works

]]> By: Sasikala http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-30371 Sasikala Thu, 21 Jan 2010 05:16:15 +0000 http://www.thegeekstuff.com/?p=2306#comment-30371 To change "a" by "x" in every 50th line of a file, use the following. $ sed ' :loop $!N s/^\(\([^\n]*\n\)\{49\}\)a\([^\n]*\)/\1x\3/ t $!b loop ' filename To change “a” by “x” in every 50th line of a file, use the following.

$ sed ‘
:loop
$!N
s/^\(\([^\n]*\n\)\{49\}\)a\([^\n]*\)/\1x\3/
t
$!b loop
‘ filename

]]> By: John Alles http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-30317 John Alles Wed, 20 Jan 2010 15:18:59 +0000 http://www.thegeekstuff.com/?p=2306#comment-30317 Hi, I have a file as 12000 lines like this: a 1 2 3 a 2 3 4 a 5 6 9 ..... I would like to change "a" by "x" every 50 lines. I know this command: sed -e "s///" I have to 2400 times. Do you know easier way for taht? Hi,
I have a file as 12000 lines like this:
a 1 2 3
a 2 3 4
a 5 6 9
…..
I would like to change “a” by “x” every 50 lines.

I know this command:
sed -e “s///”

I have to 2400 times.
Do you know easier way for taht?

]]> By: fety http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-22138 fety Thu, 12 Nov 2009 09:14:04 +0000 http://www.thegeekstuff.com/?p=2306#comment-22138 Hi, Ramesh I have been following your tutorial from the first tutorial of SED. It is really help me so much to understand better about SED. Again, thanks very much. Hi, Ramesh

I have been following your tutorial from the first tutorial of SED. It is really help me so much to understand better about SED.
Again, thanks very much.

]]> By: Destillat KW43-2009 | duetsch.info - GNU/Linux, Open Source, Softwareentwicklung, Selbstmanagement, Vim ... http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-20201 Destillat KW43-2009 | duetsch.info - GNU/Linux, Open Source, Softwareentwicklung, Selbstmanagement, Vim ... Fri, 23 Oct 2009 09:05:50 +0000 http://www.thegeekstuff.com/?p=2306#comment-20201 [...] Unix Sed Tutorial: How To Execute Multiple Sed Commands [...] [...] Unix Sed Tutorial: How To Execute Multiple Sed Commands [...]

]]> By: Guy Patterson http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-20183 Guy Patterson Fri, 23 Oct 2009 02:43:09 +0000 http://www.thegeekstuff.com/?p=2306#comment-20183 There's also potential to use a semi-colon to combine multiple sed arguments. For example, I use the following to watch httpd access logs: RED=`echo -en '\e[32m'` YELLOW=`echo -en '\e[93m'` RESET=`echo -en '\e[00m' sudo tail -f /mnt/netdata/_shares/logs/httpd/domain.com/$YEAR/$MON/domain-access-$MON-$YEAR.log |sed -e "s/^.*\]: //g;s/ www.domain.*\] \"/ - \"/g;s/ HTTP\/1\.[0-9]\"/\"/g;s/ [0-9][0-9][0-9] [0-9]* \"/ \"/g;s/http:\/\/www.domain.com//g;s/\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\)/$RED\1$RESET/g;s/\(\"[^\"]*\"\)/$YELLOW\1$RESET/g;s/*169.254.254.254*//g" yay cli! :] There’s also potential to use a semi-colon to combine multiple sed arguments.

For example, I use the following to watch httpd access logs:

RED=`echo -en ‘\e[32m'`
YELLOW=`echo -en '\e[93m'`
RESET=`echo -en '\e[00m'

sudo tail -f /mnt/netdata/_shares/logs/httpd/domain.com/$YEAR/$MON/domain-access-$MON-$YEAR.log |sed -e "s/^.*\]: //g;s/ http://www.domain.*\] \”/ – \”/g;s/ HTTP\/1\.[0-9]\”/\”/g;s/ [0-9][0-9][0-9] [0-9]* \”/ \”/g;s/http:\/\/www.domain.com//g;s/\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\)/$RED\1$RESET/g;s/\(\”[^\"]*\”\)/$YELLOW\1$RESET/g;s/*169.254.254.254*//g”

yay cli! :]

]]> By: Seraphyn Blog http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-how-to-execute-multiple-sed-commands/comment-page-1/#comment-19608 Seraphyn Blog Fri, 16 Oct 2009 09:25:12 +0000 http://www.thegeekstuff.com/?p=2306#comment-19608 <strong>Links 161009...</strong> Deep Packet Inspection Engine Goes Open SourceDeep packet inspection (DPI) hardware can identify an astonishing array of protocols passing across the Internet—up to and including protocols that are rare even to us in the Orbiting HQ (Gadu-Gadu? Manolit... Links 161009…

Deep Packet Inspection Engine Goes Open SourceDeep packet inspection (DPI) hardware can identify an astonishing array of protocols passing across the Internet—up to and including protocols that are rare even to us in the Orbiting HQ (Gadu-Gadu? Manolit…

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