使用SED替换大量HTML文件中的域名

Question

Ok, I give up. I've been trying for a couple of hours to get sed to replace an incorrectly formatted domain name in several thousand html files but I cannot seem to get the escaping of the slashes (and possibly dot/colon) correct.

Text to find: http://www.domain.com/http

Replace with: http

What i have tried:

sed -i 's/http:\/\/www.domain.com\/http/http/'
sed -i 's/http\\:\\/\\/www\\.domain\\.com\\/http/http/'
sed -i 's/http\:\/\/www\.domain\.com\/http/http/'
sed -i 's=http://www.domain.com/http=http='

UPDATE:

As it transpires I was chasing chasing ghosts. A piece of javascript was adding the http://www.domain.com/ to the beginning of all my img tags! Unfortunately now I need to try and remove this from all pages. So instead of the above, i am now looking to:

Replace this: http://www.domain.com/ '+img[0]

with this: '+img[0]

I have tried the following to no avail:

find . -name "*.html" -type f -exec sed -i 's|http://www\.domain\.com/\'+img\[0\]|\'+img\[0\]|g' {} \;
find . -name "*.html" -type f -exec sed -i 's|http://www\.domain\.com/\'+img[0]|\'+img[0]|g' {} \;

I appear to be stuck on the escaping of certain chars again. Only this time when i try to run one of the above commands it just takes me to a > prompt.

Answer 1

You can avoid alot of the escaping by using a different delimiter. The dot . is the only character of special meaning that needs to be escaped, everything else you can match literally. Also use the global modifier with your pattern.

sed -i 's|http://www\.domain\.com/http|http|g'

Edit — You can use the following to replace the other part.

sed -i "s|http://www\.domain\.com/\('[+]img\[0\]\)|\1|g"