package pdksh 5.2.14-26 failed to install/upgrade: installed pdksh package post-installation script subprocess returned error exit status 2

[Ashik]

for installing oracle 12c on ubuntu 20.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: pdksh 5.2.14-26
ProcVersionSignature: Ubuntu 5.4.0-40.44-generic 5.4.44
Uname: Linux 5.4.0-40-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.3
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Jul 12 09:19:07 2020
ErrorMessage: installed pdksh package post-installation script subprocess returned error exit status 2
InstallationDate: Installed on 2020-06-25 (16 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: pdksh
Title: package pdksh 5.2.14-26 failed to install/upgrade: installed pdksh package post-installation script subprocess returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.