<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;

The trunc and truncf functions (of C99 and C++11) are actually supported by the MS compiler (starting from the 2013), only strangely undocumented.