Perl uses buffering on its filehandles; data is cached and written in 4K chunks. To turn that off, set the file handle to auto flush;

use IO::Socket;

@colors = qw(pink yellow blue green);

open(COLORS, ">>colors.txt") or die $!;

# turn off stdio buffering on COLORS
COLORS->autoflush(1);

foreach $color (@colors){
    print COLORS "$color\n";
    print "sending $color to File\n";
}

while (<STDIN>) {
    chomp;
    exit if ($_ eq "quit");
    print COLORS $_;
}

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In reply to Re: how do I write directly to a file by mugwumpjism
in thread how do I write directly to a file by Fathersuperior

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