There is no "copy" function. If you include the file module there is a ReadTextFile and WriteTextFile class you could use to for text.
If you are working with images, you'll need to use the builtin squirrel functions to read in the bytes, then write the byte back to the new location:
http://www.squirrel-lang.org/doc/sqstdlib3.html#d0e152You can look at the file module code to see how to read/write files in squirrel..
The file module could use some updates to do some additional common file operations, so if you can create a copy(from,to) function - perhaps you can submit it to be included in that module?
