how to bulk format url with bash command?

Question

I have many links in markdown format like this below:

[link desc1](http://1goo.....com)
[link desc2](http://2goo.....com)
[link desc3](http://3goo.....com)
[link desc4](http://4goo.....com)
...

below is my desired output, remove[] and () just remain links

http://1goo.....com
http://2goo.....com
http://3goo.....com
http://4goo.....com
...

I just want to save the link，thanks a lot.

Answer 1

Assuming you only want to get the URL and all that info is contained in a file named urls.txt, then you'd like to try sed like this:

sed -e 's/.*(//' -e 's/)//' urls.txt

BR

Regards