dockerfile.run

ruby

Ruby programming language interpreter. See also: gem, bundler, rake, irb. More information: <https://www.ruby-lang.org>.

Debian

RUN apt-get update && \
    apt-get install -y ruby

Ubuntu

RUN apt-get update && \
    apt-get install -y ruby

Alpine

RUN apk add ruby

Arch Linux

RUN pacman -S --noconfirm ruby

Kali Linux

RUN apt-get update && \
    apt-get install -y ruby

CentOS

RUN yum install -y ruby

Fedora

RUN dnf install -y ruby

Raspbian

RUN apt-get update && \
    apt-get install -y ruby

click the source code to copy install ruby on any operating system with command-not-found.com