Regex to match a string after colon

Question

Input string is something like this: OU=TEST:This001. We need extra \"This001\". Best in C#.

Answer 1

if the OU=TEST: is your requirement before the string you want to match, use this regex:

(?<=OU\s*=\s*TEST\s*:\s*).*

that regex matches any length of text after the colon, whereas any text before the colon is just a requirement.

You can replace TEST with [A-Za-z]+ to match any text other than TEST, or you can replace TEST with [\w]+ to match any length of any combination of alphabet and numbers.

\s* means it might be any number of whitespaces or nothing in that position, remove it if you don't need such a check.