Open a terminal and type this command:
The output will give you a list of files with "wine" in the name. My output looked like this after using it:
$ whereis wine
wine: /usr/bin/wine /usr/lib/wine /usr/X11R6/bin/wine /usr/bin/X11/wine /usr/share/wine /usr/share/man/man1/wine.1.gz
If you're new to Linux, you should know that wine is executed from a terminal. Type wine --help to learn how to use it.