Question

I am trying to delete this string

;document.write('<iframe src="http://google.com" scrolling="auto" frameborder="no" align="center" height="11" width="11"></iframe>');

across all files within a directory (sub directories included).

I know I have to escape characters or use regex. However I am awful with regex. Any insight appreciated.

Answer 1

You don’t need to use regex if you want to delete a fixed string. You can put it in a sed command as is, but choose a separator other than any characters in the string (I use # here):

str=";document.write('<iframe src="'"http://google.com" scrolling="auto" frameborder="no" align="center" height="11" width="11"></iframe>'"');"
find . -type f -exec sed -i.bk -e "s#$str##g" {} \;