what to do after a Get URL?

[Jon]

I understand how to write the statement

get url "ftp://a.b.c/d.txt"

or some such.  OK, so now the file is somehow "in" the computer, with 
the Get.

What I don't "get" (so to speak) is how to put that data into my local 
computer as a file.  I assume it is something like

put url "file://something"

but I'm not sure about the "something".  "file://c:/dir/filename.txt"?  
"file://c/dir/filename.txt"?  And I'm not sure how to specify the data 
to "put" in the Put statement: is it implicit (one of those magic words 
like "it" or "this" or something)?

I'm sure this is simple/obvious, but only if you know it...

:)

Jon