http://www.perlmonks.org?node_id=253528


in reply to peek - output a one-line preview of stdin

my $pad = ' ' x $wide; ... $_ = substr($_ . $pad, 0, $wide); print $_, "\r";
That can be written far more simply and efficiently as:
printf "%-${wide}.${wide}s\r", $_;

-- Randal L. Schwartz, Perl hacker
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