RedHat 9 (Linux i386) - man page for io::file (redhat section 3pm)

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IO::File(3pm)			 Perl Programmers Reference Guide		    IO::File(3pm)

       IO::File - supply object methods for filehandles

	   use IO::File;

	   $fh = new IO::File;
	   if ($fh->open("< file")) {
	       print <$fh>;

	   $fh = new IO::File "> file";
	   if (defined $fh) {
	       print $fh "bar\n";

	   $fh = new IO::File "file", "r";
	   if (defined $fh) {
	       print <$fh>;
	       undef $fh;	# automatically closes the file

	   $fh = new IO::File "file", O_WRONLY|O_APPEND;
	   if (defined $fh) {
	       print $fh "corge\n";

	       $pos = $fh->getpos;

	       undef $fh;	# automatically closes the file

	   autoflush STDOUT 1;

       "IO::File" inherits from "IO::Handle" and "IO::Seekable". It extends these classes with
       methods that are specific to file handles.

       new ( FILENAME [,MODE [,PERMS]] )
	   Creates an "IO::File".  If it receives any parameters, they are passed to the method
	   "open"; if the open fails, the object is destroyed.	Otherwise, it is returned to the

	   Creates an "IO::File" opened for read/write on a newly created temporary file.  On
	   systems where this is possible, the temporary file is anonymous (i.e. it is unlinked
	   after creation, but held open).  If the temporary file cannot be created or opened,
	   the "IO::File" object is destroyed.	Otherwise, it is returned to the caller.

       open( FILENAME [,MODE [,PERMS]] )
	   "open" accepts one, two or three parameters.  With one parameter, it is just a front
	   end for the built-in "open" function.  With two or three parameters, the first parame-
	   ter is a filename that may include whitespace or other special characters, and the
	   second parameter is the open mode, optionally followed by a file permission value.

	   If "IO::File::open" receives a Perl mode string (">", "+<", etc.)  or an ANSI C
	   fopen() mode string ("w", "r+", etc.), it uses the basic Perl "open" operator (but
	   protects any special characters).

	   If "IO::File::open" is given a numeric mode, it passes that mode and the optional per-
	   missions value to the Perl "sysopen" operator.  The permissions default to 0666.

	   For convenience, "IO::File" exports the O_XXX constants from the Fcntl module, if this
	   module is available.

       perlfunc, "I/O Operators" in perlop, IO::Handle IO::Seekable

       Derived from by Graham Barr <>.

perl v5.8.0				    2002-06-01				    IO::File(3pm)
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