dockerfile.run

kdiff3

compares and merges 2 or 3 files or directories

Debian

RUN apt-get update && \
    apt-get install -y kdiff3

Ubuntu

RUN apt-get update && \
    apt-get install -y kdiff3

Arch Linux

RUN pacman -S --noconfirm kdiff3

Kali Linux

RUN apt-get update && \
    apt-get install -y kdiff3

Fedora

RUN dnf install -y kdiff3

Raspbian

RUN apt-get update && \
    apt-get install -y kdiff3

click the source code to copy install kdiff3 on any operating system with command-not-found.com