|There's DEL of course to delete particular files, ERASE to delete files or folders with files, RD (remove directory) to delete empty directories.|
You can get help for each command by adding /? after the command, such as ERASE/? and enter.
Edit You may need the ATTRIB command to remove read-only, hidden or system attributes in order to remove the file. Also, you can't remove a file that's currently in use. In that case you may be able to remove it from safe mode or safe mode command prompt.
I don't think there's any advantage in using command prompt to do it vs. doing it from the desktop, unless you're more comfortable with dos-type file and folder maneuvering