Roll is a fast, cross-platform program for rolling dice in your terminal.
It aims to be as intuitive as possible using the same syntax as many tabletop role playing games.
roll <num>d<sides>
If you want to roll 3 d20's you can use the following command
roll 3d20
Or if you want to roll 2 d6's you can use
roll 2d6
Note
roll 1d6 is the same as roll d6
Homebrew (MacOS/Linux)
brew tap korbexmachina/tap
brew install korbexmachina/tap/roll
Go
go install github.com/korbexmachina/roll@latest