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Replace multiple lines between tags using sed

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# 1  
Old 11-24-2008
Replace multiple lines between tags using sed
I have a file example.txt with content look like this:
PHP Code:
<TAG>
1
2
3
</TAG> 
and I use a sed command to replace everything between <TAG></TAG> as below:

PHP Code:
sed -e 's/\(<TAG>\)[^<]*\(<.*\)/something/g' example.txt > example.txt.new 
But unfortunately, the command failed to replace as i want, it only work if the content between the tags are not break into multi-line. Could someone please explain how to solve this case?

Thanks a lot.
# 2  
Old 11-24-2008
Try this:
Code:
awk '/<TAG>/{p=1;print}/<\/TAG>/{p=0}!p' file

# 3  
Old 11-24-2008
many thanks Franklin!

Your awk command doesn't replace the content between the tags, but it deletes them. Now, i can use sed command to add new content as expect. Thanks again for your help.
# 4  
Old 11-24-2008
Try:

Code:
sed -n '/<TAG>/,/<\/TAG>/p' < file | sed  '/TAG/d'

# 5  
Old 11-24-2008
To replace the text with something you can try this:

Code:
awk '/<TAG>/{p=1;print;print "something"}/<\/TAG>/{p=0}!p' file

# 6  
Old 11-24-2008
I really appreciated for your help dennis. But the Franklin's command works very well in my situation. Maybe i'll need your helps for my future's troubles, but i owed you this time Smilie
# 7  
Old 05-11-2009
Sorry to bring up this old thread but I couldn't find a better and more relevant place.

I have a similar situation, where I wish to remove the code between two tags in many thousands of files.

Here is the code snippet:

Code:
<AFFILIATECODEBEGIN>

<p align="center">
<script type="text/javascript"><!--
auctionads_ad_client = "editedforprivacy";
auctionads_ad_campaign = "42efbc14b4c2adfae40ff87882f07569";
auctionads_ad_width = "120";
auctionads_ad_height = "240";
auctionads_ad_kw =  "japan";
auctionads_color_border =  "CC0000";
auctionads_color_bg =  "FFFFFF";
auctionads_color_heading =  "000000";
auctionads_color_text =  "000000";
auctionads_color_link =  "FFFFFF";
--></script>

<script type="text/javascript" src="http://ads.auctionads.com/pagead/show_ads.js">
</script>

</p>

</AFFILIATECODEBEGIN>

I have tried running

Code:
awk '/<AFFILIATECODEBEGIN>/{p=1;print}/<\/AFFILIATECODEBEGIN>/{p=0}!p' festivals.html

And also using * instead of naming a specific file. I am output the contents of the file, but nothing is removed or changed.

Thanks in advance for any suggestions.
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