I am attempting to use wine on my mac for the first time. My problem is that the instructions tell me to "cd to the location, and use ls to make sure you can see the installer file." That would be fine except that I have no idea what it means to "cd" something. Apparently it has something to do with finding my file (even though I know exactly where it is) and the manual does not describe this function's use either. I need to do this in order to install the windows program on wine, so is there anyone who could help?