RegEx to match full string

Question

I am trying to create a regex for 301s that will help me identify the url: site.com/abc/ and redirect to site.com/xyz/. I've tried regex as ^abc/? and it works fine but the problem is even urls like site.com/123/sdas/abc/213 are getting caught. How can I ensure only /abc gets matched with the full string url?

Answer 1

Use the end of line anchor $:

^abc/$

This ensures that the exact string abc/ will be matched.

Answer 2

$ matches end of string:

^abc/?$