Task

Verify that a file called     input.txt     and   a directory called     docs     exist.



This should be done twice:  

   once for the current working directory,   and
   once for a file and a directory in the filesystem root.


Optional criteria (May 2015):   verify it works with:

   zero-length files
   an unusual filename:     `Abdu'l-Bahá.txt  


: print-exists? ( path -- )
    [ write ": " write ] [ exists? "exists." "doesn't exist." ? print ] bi ;
 
{ "input.txt" "/input.txt" "docs" "/docs" } [ print-exists? ] each