Re: File contents not updated properly

[sathiya.sw]

You need to select the file handle as,
select(FH);

open(FH,">Sample");
select(FH);
$|=1;
while(1) {
print FH "This is for testing\n";
sleep 1;
}

[fmerges]

Hi,

First of all, don't assume that you could open the file, check for it. Then use 3 argument open, and don't use a typeglob.

open my $fh, '>', $filename or die "Can't open $filename: $!";

The solution provided will leave the default handler to be *FH, which is not desired, meaning all prints, etc will use *FH; alternatives:

# not so maintainable, but still used frequently
select((select($fh), $|++)[0]);

# better
use IO::Handle;
$fh->autoflush(1);

Check out the link about buffering provided...

Regards,