convert this batch code: type %0 > hello.txt?

[wangChung]

hey, i'm new to all of this.  i was hoping somebody here could just convert this simple batch line of code into rebol for me?

Code:

type %0 > hello.txt

thanks for your time.

[CarlRead]

Can you explain what it actually does?  The hello.txt is obviously a file name (and would be %hello.txt in REBOL), but the rest I'm not certain of, since I don't do batch processing.
 

[wangChung]

%0 is the current file.  this code just copies the contents of the current file (%0) into a new file named hello.txt.

[Graham]

as a function

foo: func [ filename [file!]
][
 write %hello.txt read filename
]

and used as

foo %filename

If you want to read and write binary files, use write/binary and read/binary