How to install ls command?

The ls command is part of the core utilities in Unix-like operating systems, including Linux. It is typically included by default, so you shouldn't need to install it separately. However, if for some reason it is missing, you can reinstall the core utilities package.

For Ubuntu/Debian:

You can reinstall the core utilities using the following command:

sudo apt install coreutils

For CentOS/RHEL:

Use this command:

sudo yum install coreutils

For Fedora:

You can use:

sudo dnf install coreutils

After installation, you should be able to use the ls command. If you continue to have issues, please check your system's PATH or provide more details about your environment!