Hi Agnello, On Thu, 22 May 2014 11:43:46 +0530 Agnello George <agnello.dso...@gmail.com> wrote:
> Hi > > I just came across this special var $| , autoflush , jsut wondering how and > where to use this . Can some one help me understand the concrete use of > this special var. > First of all, you should not use "$|" directly - you should do: « use IO::Handle; # Only needed for relatively old versions of perl. STDOUT->autoflush(1); » See: http://perl-begin.org/tutorials/bad-elements/#properly_autoflushing For more information about why it is sometimes desirable: 1. http://stackoverflow.com/questions/4538767/how-flush-a-file-in-perl 2. http://www.plover.com/FAQs/Buffering.html 3. perlbot (an IRC bot on Freenode) has this to say about it: « <perlbot> rindolf: https://en.wikipedia.org/wiki/Shishi_odoshi or in C http://www.freebsd.org/cgi/man.cgi?query=setvbuf or in Perl see http://perl.plover.com/FAQs/Buffering.html - tl;dr - $fh->autoflush(1) (plus use IO::Handle under ancient perl versions) » Best regards, Shlomi Fish -- ----------------------------------------------------------------- Shlomi Fish http://www.shlomifish.org/ Beginners Site for the Vim text editor - http://vim.begin-site.org/ Sophie: Let’s suppose you have a table with 2^n cups… Jack: Wait a second! Is ‘n’ a natural number? Please reply to list if it's a mailing list post - http://shlom.in/reply . -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
