RH is an American multinational software company providing open-source software products to the enterprise community. Founded in 1993, RH has its headquarters in Raleigh, North Carolina, with other offices worldwide.RH has become associated to a large extent with its enterprise operating system Red Hat Enterprise Linux and with the acquisition of open-source enterprise middleware vendor JBoss. They also offer Red Hat Virtualization (RHV), an enterprise virtualization product. There for RH also provides storage, operating system platforms, middleware, applications, management products, and support, training like RHCSA, RHCSE and Ansible, and consulting services.
They create, maintain, and contribute to many free software projects. It has acquired several proprietary software product codebases through corporate mergers and acquisitions and has released such software under open-source licenses. As of March 2016, RH is the second largest corporate contributor to the Linux kernel version 4.14 after Intel.
This OS is a world wide used Operating System, which uses linux and his own commands. Besides Linux, RH is also a way of life. A Microsoft minded person does not favorite Linux or RH. Allthough people do change! At first I got my MCSE from Microsoft. Afterwards I got into HP-UX and all of it’s ways of working in a terminal. CentOS is RH related and also called the free open-source version. Basics and commands are rather the same.
On this page I will recommend best practise commands or how to’s. This also concerns CentOS.