Regex to remove the specific word from URL

In Dynatrace, there are the URLs which are containing the a word which is dynamic. Want to remove that dynamic word from the URL using regex

Below are the different urls

Expected output

I'm able to manage this regex

(\S+?)ab_cd(.*)

But its not working for dynamics values and all URL. How Can I improve the regex to to remove the dynamic value?

Solution

You could use the 2 capturing groups and match the underscore part after matching a forward slash

^(\S+/)[^\s_]+_[^\s_/?]+(.*)

^ Start of string
(\S+/) Capture group 1, match 1+ times a non whitespace char followed by /
[^\s_]+ Match 1+ times any char except a whitespace char or _
_ Match literally
[^\s_/?]+ Match 1+ times any char except a whitespace char, _, / or ?
(.*) Capture group 2 Match 0+ times any char except a newline

In the replacement use the 2 capturing groups, for example $1$2

If you want to match country codes and you know that they for example consist of chars a-zA-Z you could make the character class more specific

^(\S+/)[A-Za-z]+_[A-Za-z]+(.*)