Simplelog is the simplest of loggers, built to log when your needs are
simple. To use, just require .simplelog. and all your puts statements
saved to a LOG_.txt file as well as printed on screen. That’s it and
that’s that.

It’s tailored for situations where you need simple logging, or when
an existing application grows and you need to save output in a hurry.

I need that quite often, maybe someone else as well

gem install simplelog

All the best