regex - Regular Expression, remove everything after last forward slash

Question

I'm trying to use a regular expression within PowerShell to remove everything from the last slash in this string;

 NorthWind.ac.uk/Users/Current/IT/Surname, FirstName
 NorthWind.ac.uk/Users/Dormant/DifferentArea/Surname, FirstName

I need to remove Surname, FirstName including the /. The string should look like this.

 NorthWind.ac.uk/Users/Current/IT

If someone could help me, I would be very grateful.

I have tried this; -replace '([/])$','' but I can't seem to get it to work.

Thanks

Answer 1

Replace /[^/]*$ with an empty string