AW: Kindly explain special variable $|

[Thomas Bätzler]

sanket vaidya <sanket.vai...@patni.com> asked:
> It would be great if some of you write a simple code which has two
> different outputs for $| = 0 & $| = 1 to demonstrate the difference.

Try this with different values for $|

#!/usr/bin/perl -w

use strict;

$| = 1;

for ( 1..20 ){
  print ".";
  warn "!" unless $i % 5;
  sleep 1;
}

print "\n";
__END__

HTH,
Thomas

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