dockerfile.run

cow

copy-on-write utility

Debian

RUN apt-get update && \
    apt-get install -y fl-cow

Ubuntu

RUN apt-get update && \
    apt-get install -y fl-cow

Kali Linux

RUN apt-get update && \
    apt-get install -y fl-cow

Raspbian

RUN apt-get update && \
    apt-get install -y fl-cow

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