When I run this code 

open (FH,'>',"linefeed.txt");
# binmode FH;  # I have added this line
print FH "This is  a line\r\n"

__END__
This is  a line^M  (viewed under gvim on win XP SP 2)

[download]
Uncomment the binmode FH and re-run

Output

This is  a line (NOTE: no ^M)<p>

[download]

perldoc -f binmode
On some systems (in general, DOS and Windows-based systems) binmode() 
+is necessary when you're not working with a text file.  For the sake 
+of portability it is a good idea to always use it when appropriate, a
+nd to never use it when it isn't appropriate.

[download]

update: Guess I am joining this thread a bit late now!

As others have mentioned CRLF translation is done automatically by Perl. So you are better off using \n in windows and Perl will take care of the rest.

OK what's the scoop with binmode and why did the problem go away?

The reason is that binmode() does not translate \n => CRLF and rather does \n=>LF. Since you are doing \r\n it becomes => CR(i.e. \r)LF(i.e.\n) in binmode!

-SK

In reply to Re: CRLF and Windows XP SP2 by sk
in thread CRLF and Windows XP SP2 by slloyd

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