Problem Statement

Create a file called   "output.txt",   and place in it the contents of the file   "input.txt",   via an intermediate variable. In other words, your program will demonstrate:

Oneliners that skip the intermediate variable are of secondary interest — operating systems have copy commands for that.

Let's start with the solution:

"input.txt" binary file-contents
"output.txt" binary set-file-contents


[
    "input.txt" binary <file-reader> &dispose
    "output.txt" binary <file-writer> stream-copy
] with-destructors


"input.txt" "output.txt" copy-file