dockerfile.run

really

really - a tool for gaining privilege (simple, realistic sudo)

Debian

RUN apt-get update && \
    apt-get install -y chiark-really

Ubuntu

RUN apt-get update && \
    apt-get install -y chiark-really

Kali Linux

RUN apt-get update && \
    apt-get install -y chiark-really

Raspbian

RUN apt-get update && \
    apt-get install -y chiark-really

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