CentOS / RHEL: Install KornShell (KSH)

To install the KornShell (KSH) on a CentOS or RHEL system, you can use the following steps:

1. Install the epel-release repository:

sudo yum install epel-release

This will install the epel-release repository, which contains the KSH package.

2. Install KSH:

sudo yum install ksh

This will install KSH and its dependencies.

3. Test the installation:

ksh -c 'echo $KSH_VERSION'

This will print the version of KSH that is installed on your system.