Use the One-Click Installer utility to perform a clean installation of the Plesk Panel in one step. Plesk-Panel install utility automatically determines your operating system and installs the latest version of an appropriate distribution in the typical configuration. One-Click Installer works only on Linux OS.
Before the installation, make sure that your chosen OS is supported by Plesk:
https://docs.plesk.com/release-notes/onyx/software-requirements/
https://docs.plesk.com/release-notes/onyx/software-requirements/
To install the Plesk Panel, run one of the following commands on behalf of the root.
With wget utility, run:wget -O - http://autoinstall.plesk.com/one-click-installer | sh
With curl utility, run:curl http://autoinstall.plesk.com/one-click-installer | sh
With fetch utility, run:fetch -o - http://autoinstall.plesk.com/one-click-installer | sh