File input/output is part of Short Circuit's Console Program Basics selection.
Task

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:

   how to read from a file into a variable
   how to write a variable's contents into a file


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




open "input.txt" for input as #in
fileLen   = LOF(#in)		    'Length Of File
fileData$ = input$(#in, fileLen)    'read entire file
close #in
 
open "output.txt" for output as #out
print #out, fileData$               'write entire fie
close #out 
end
 
' or directly with no intermediate fileData$
 
open "input.txt"  for input  as #in
open "output.txt" for output as #out
fileLen   = LOF(#in)		    'Length Of File
print #out, input$(#in, fileLen)    'entire file
close #in
close #out
 