Thread: Linux / Unix: sed find and replace

Hi,
I need your urgent help :/

I have the following file:

root@ee [/]# cat a.txt
/home/xx1/index.php
/home/xx2/galeria.php

sed command:

root@ee [/]# sed -i 's|\(.*\)|<span style="color=red">\1</span>|g' a.txt
root@ee [/]# cat a.txt
<span style="color=red">/home/xx1/index.php</span>
<span style="color=red">/home/xx1/index.php</span>

but I need to be as follows:

/home/xx1/index.php <span style="color=red">/home/xx1/index.php</span>
/home/xx2/galeria.php <span style="color=red">/home/xx1/index.php</span>

help please

so what?
repeat the back reference where ever you need it to be.

Someone who can help me please?

Originally Posted by javiercampos

Someone who can help me please?

Hi,
using sed:

Code:

sed -i.bkp 's|\(.*\)|\1 <span style="color=red">\1</span>|g'  /tmp/a.txt

using awk:

Code:

awk '{ print $0,"<span style=\"color=red\">"$0"</span>"}'  /tmp/a.txt

You may using & as the matched string
sed 's|\(.*\)|&<span style="color=red">&</span>|g' a.txt
Here is my output:
/home/xx1/index.php <span style="color=red">/home/xx1/index.php</span>
/home/xx2/galeria.php <span style="color=red">/home/xx2/galeria.php</span>

My two cents..

sed -ri 's|(.*)|&<span style="color=red">&</span>|g' a.txt

-r for regexp enabling so that you can just mention (.*) instead of \(.*\). And I given -i for editing a.txt file directly.

Originally Posted by kumarat9pm

My two cents..

sed -ri 's|(.*)|&<span style="color=red">&</span>|g' a.txt

-r for regexp enabling so that you can just mention (.*) instead of \(.*\). And I given -i for editing a.txt file directly.

To kumarat9pm : good solution,your method is more efficient. May I ask a question? Do you know what the \S means is the following commands? I google it ,but don't find the expected answer, thanks.
echo "IPL 200 PARM CLEAR LOADPARM 0009" | sed 's/.*\sPARM\s\(\S\S*\).*/\1/p'

Originally Posted by Learningshell

To kumarat9pm : good solution,your method is more efficient. May I ask a question? Do you know what the \S means is the following commands? I google it ,but don't find the expected answer, thanks.
echo "IPL 200 PARM CLEAR LOADPARM 0009" | sed 's/.*\sPARM\s\(\S\S*\).*/\1/p'

\S means.. match other than space, tabs etc..

mention in other post which you asked..
Sed command need your help,thanks in advance!