Re: A step on the path to enlightenment

[Aristotle]

And of course you can also use -l to shorten any other variants. -n might also be of interest.

perl -le "print eval while <>"
perl -nle "print eval"
perl -ple "$_=eval"

Personally, simply for the sake of clarity, I'd prefer the -n variant.

Makeshifts last the longest.