Beefy Boxes and Bandwidth Generously Provided by pair Networks
Don't ask to ask, just ask

Re: Flushing the print buffers.

by FunkyMonk (Canon)
on Feb 21, 2008 at 19:58 UTC ( #669375=note: print w/ replies, xml ) Need Help??

in reply to Flushing the print buffers.

I guess you got a "Name "main::OUTPUT_HANDLE" used only once: possible typo" warning with the code you posted


my $old_fh = select(STDOUT); $| = 1; select($old_fh);

  • The first select changes the default output filehandle to STDOUT and returns the current default output filehandle to be saved in $old_fh.
  • $|=1 turns on autoflushing on the current output filehandle
  • select($old_fh) restores the original output filehandle

Generally, if you just want to turn on autoflushing on STDOUT, a simple $|=1 will do.

Replies are listed 'Best First'.
Re^2: Flushing the print buffers.
by kansaschuck (Sexton) on Feb 23, 2008 at 06:01 UTC
    This worked nicely:
    my $old_fh = select(STDOUT); $| = 1; select($old_fh);

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://669375]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others making s'mores by the fire in the courtyard of the Monastery: (7)
As of 2016-07-24 14:30 GMT
Find Nodes?
    Voting Booth?
    What is your favorite alternate name for a (specific) keyboard key?

    Results (221 votes). Check out past polls.