<wob_jonas> perl -eopen$i,"<",($f="wisdom/aristotle");$_=<$i>; s/, even though.*\\. / without checking. / or die; if (1) { open$o,">",$f; print$o $_ or die; } print substr$_,0;

`4 <cmd> is equivalent to `5 <cmd>, except that it only repeats 4 times. Useful when you've already run a command forgetting to use `5.