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clojure.java.io

Available since 1.2
  • (copy input output & opts)
Copies input to output.  Returns nil or throws IOException.
Input may be an InputStream, Reader, File, byte[], or String.
Output may be an OutputStream, Writer, or File.
 Options are key/value pairs and may be one of
   :buffer-size  buffer size to use, default is 1024.
  :encoding     encoding to use if converting between
                byte and char streams.   
 Does not close any streams except those it opens itself 
(on a File).