В Ubuntu вам нужно использовать apt-get вместо yum для установки любого пакета. Итак, чтобы установить k sh, вам нужно использовать команду apt-get -y install ksh. Вот мой Dockerfile-
FROM ubuntu:18.04
RUN apt-get -qqy update && apt-get dist-upgrade -qqy && apt-get -y install ksh
А вот вывод из моего контейнера, показывающий, что k sh действительно был установлен -
root@qa6:~/amitp/p1# docker run -it 948453249b61 bash
root@ea237be38b71:/# ksh
# echo $0
ksh
#
Обновление : выше было для контейнера с установленным k sh при создании образа контейнера. Если у вас уже работает какой-либо контейнер Ubuntu, используйте команду, аналогичную показанной ниже, чтобы установить k sh -
root@qa6:~/amitp/p1# docker run -it 72300a873c2c bash
root@5c844bb2b7ad:/# ksh
bash: ksh: command not found
root@5c844bb2b7ad:/# apt-get -qqy update && apt-get dist-upgrade -qqy && apt-get -y install ksh
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
binfmt-support libpipeline1
The following NEW packages will be installed:
binfmt-support ksh libpipeline1
0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
Need to get 921 kB of archives.
After this operation, 3665 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu bionic/main amd64 libpipeline1 amd64 1.5.0-1 [25.3 kB]
Get:2 http://archive.ubuntu.com/ubuntu bionic/main amd64 binfmt-support amd64 2.1.8-2 [51.6 kB]
Get:3 http://archive.ubuntu.com/ubuntu bionic/universe amd64 ksh amd64 93u+20120801-3.1ubuntu1 [844 kB]
Fetched 921 kB in 1s (793 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package libpipeline1:amd64.
(Reading database ... 4046 files and directories currently installed.)
Preparing to unpack .../libpipeline1_1.5.0-1_amd64.deb ...
Unpacking libpipeline1:amd64 (1.5.0-1) ...
Selecting previously unselected package binfmt-support.
Preparing to unpack .../binfmt-support_2.1.8-2_amd64.deb ...
Unpacking binfmt-support (2.1.8-2) ...
Selecting previously unselected package ksh.
Preparing to unpack .../ksh_93u+20120801-3.1ubuntu1_amd64.deb ...
Unpacking ksh (93u+20120801-3.1ubuntu1) ...
Setting up libpipeline1:amd64 (1.5.0-1) ...
Setting up binfmt-support (2.1.8-2) ...
update-binfmts: warning: Couldn't load the binfmt_misc module.
invoke-rc.d: could not determine current runlevel
invoke-rc.d: policy-rc.d denied execution of start.
Setting up ksh (93u+20120801-3.1ubuntu1) ...
update-alternatives: using /bin/ksh93 to provide /bin/ksh (ksh) in auto mode
update-alternatives: warning: skip creation of /usr/share/man/man1/ksh.1.gz because associated file /usr/share/man/man1/ksh93.1.gz (of link group ksh) doesn't exist
update-binfmts: warning: Couldn't load the binfmt_misc module.
Processing triggers for libc-bin (2.27-3ubuntu1) ...
root@5c844bb2b7ad:/# ksh
#