everytime i try to execute an .exe file in my terminal with "wine" i get an error when theres a space inbetween a name in a file. such as "program files" if it was named "programfiles" it would cd into it. does anyone know how to fix this problem?

Use slashes, e.g. "cd Program\ Files". If you type the first few letters and there isn't anything else in the current folder with the same name, the file/folder name will be completed when you press TAB. This is known as tab completion, unsurprisingly!

Just to elaborate on Nylex's explanation:

there are a number of "special characters" in the shell, including "!", " "(space), and "&". Preceding such characters with \ tells the shell to read such a character in an alternate way, usually by interpreting it as just a character. So entering "\ " is just a space. This is how you refer to any file or directory with a space in the name, and the same goes for any files with ( or ), or any of those other characters.

Tab completion is pretty awesome. Not only does it fill in the value/name if there's one possible value (thus saving typing time for the lazy and impatient.. aka me), but if you hit tab twice it will list out for you all of the possible files/folders you COULD enter. This is one of the many features to the terminal that makes using it fast and powerful.

if you're not suer how to use the \ (escape) character for special characters you can also simply write the whole filename/path and put it between " ". It'll also work. However I suggest you have a good look at the use of \ and tab-completion as explained above because it comes in handy very often.