Hi need some help with string manipulation. I have a string representing
full path of a file. Example "/foo/foo.gif". I need to just extract the
file name i.e "foo.gif" from this string. I also need to extract the
file type i.e "gif" from it in a separate string. Can anybody tell me
how to do it using regular expressions in Ruby. I know this can be done
using String.gsub, but i am too bad at reg expressions. And if someone
can point me to good source for learning reg expressions then it would
be really helpful.

Thanks
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