Linux is a family of open source Unix-like operating systems based on the Linux kernel that are the predominant platform used to drive the internet, government and businesses. Typically packaged in a Linux distribution such as open source DebianFedora, Mint, Kali Linux and Ubuntu or commercial distributions such as Red Hat Enterprise Linux and SUSE Linux Enterprise Server

Linux shell is an interpreter that provides a command line user interface for the Linux operating systems. The shell supports both interactive commands and a scripting language.