Have you ever been grapping logs, and gotten it down to a stream of numbers, and wished you could sum all those numbers? Now you can!
Alternatives are ugly: https://stackoverflow.com/questions/450799/shell-command-to-sum-integers-one-per-line
And this is simple!
$ printf '2\n3\n\n' | mathcli mul
$ 6
Right now, you'll have to clone this repository and run cargo install --path . from within the project repo.
Feel free to make a CR.