<wob_jonas> perl -eopen$i,"<",($f="wisdom/aristotle");$_=<$i>; s/(alphabet).*/$1 doesn\'t have the letter C.\\n/ or die; open$o,">",$f; print$o $_ or die; print substr$_,300;

#!/usr/bin/perl
$c=0+$ARGV[0]; printf"%.2f°C = %.2f°F",$c,$c*9/5+32;