i = filecopy
function copies one file to another file, or a group of files to a folder. The file_name
arguments are string expressions giving the source and destination file names. They can also be file handlers declared in file
statements in PROC GLOBAL
You can use the wildcard characters "*" and "?" to specify a group of files to copy as the file_name. If using wildcard characters, the output_file_name must be the name of a folder.
The function returns the number of files copied. If there was an error copying files, the function returns default