Strings

I have a variable that uses "/" to separate words, and I want to take the last word of the string of and return everything before it. Here are some examples: /usr/test/because ==> /usr/test/ /this/is/a/test ==> /this/is/a/ is there an easy way to take everything past the last "/" off (the string changes so there will be different numbers of "/" and I only want the last word off.)?? Thank you, -------------------------------------------- Brandon