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(slib.info)Input/Output

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Enter node , (file) or (file)node

Input/Output
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These procedures are provided by all implementations.

 - Procedure: file-exists? filename
     Returns `#t' if the specified file exists.  Otherwise, returns
     `#f'.  If the underlying implementation does not support this
     feature then `#f' is always returned.

 - Procedure: delete-file filename
     Deletes the file specified by FILENAME.  If FILENAME can not be
     deleted, `#f' is returned.  Otherwise, `#t' is returned.

 - Procedure: tmpnam
     Returns a pathname for a file which will likely not be used by any
     other process.  Successive calls to `(tmpnam)' will return
     different pathnames.

 - Procedure: current-error-port
     Returns the current port to which diagnostic and error output is
     directed.

 - Procedure: force-output
 - Procedure: force-output port
     Forces any pending output on PORT to be delivered to the output
     device and returns an unspecified value.  The PORT argument may be
     omitted, in which case it defaults to the value returned by
     `(current-output-port)'.

 - Procedure: output-port-width
 - Procedure: output-port-width port
     Returns the width of PORT, which defaults to
     `(current-output-port)' if absent.  If the width cannot be
     determined 79 is returned.

 - Procedure: output-port-height
 - Procedure: output-port-height port
     Returns the height of PORT, which defaults to
     `(current-output-port)' if absent.  If the height cannot be
     determined 24 is returned.