Uncomment and comment a line of config file using sed in linux

Question

I am having the below text in my-config file

<!--<URL>www.abc.com</URL>-->
         www.xyz.com

I want to uncomment the commented line and comment the uncommented line. I tried using the sed command

 sed -i '/<!--<URL>www.abc.com</URL>-->/s/^#//g' filename

but getting error as

sed: -e expression #1, char 24: unknown command: /'`

please help in resolving this or correct if anything wrong in my sed command. Thanks in advance.

Answer 1

Since you're using the '/' as the sed delimiter, you must escape '\\' the '/' in the tag.

eg

 sed -i '/<!--<URL>www.abc.com<\/URL>-->/s/^#//g' filename

You can also switch your delimiter in sed for better readability more .