COPYFILE COPYFILE Copy Files Usage Copies a file or files from one location to another. There are several syntaxes for this function that are acceptable: copyfile(file_in,file_out) copies the file from file_in to file_out. Also, the second argument can be a directory name: copyfile(file_in,directory_out) in which case file_in is copied into the directory specified by directory_out. You can also use copyfile to copy entire directories as in copyfile(dir_in,dir_out) in which case the directory contents are copied to the destination directory (which is created if necessary). Finally, the first argument to copyfile can contain wildcards copyfile(pattern,directory_out) in which case all files that match the given pattern are copied to the output directory. Note that to remain compatible with the MATLAB API, this function will delete/replace destination files that already exist, unless they are marked as read-only. If you want to force the copy to succeed, you can append a 'f' argument to the copyfile function: copyfile(arg1,arg2,'f') or equivalently copyfile arg1 arg2 f