dockerfile.run

ksh

Korn Shell, a Bash-compatible command-line interpreter. See also: histexpand. More information: <http://kornshell.com>.

Debian

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

Ubuntu

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

Kali Linux

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

CentOS

RUN yum install -y ksh

Fedora

RUN dnf install -y ksh

Raspbian

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

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