This chapter provides basic instructions for installing Bash on the various supported platforms. The distribution supports the GNU operating systems, nearly every version of Unix, and several non-Unix systems such as BeOS and Interix. Other independent ports exist for MS-DOS, OS/2, and Windows platforms. • Basic Installation: Installation instructions. • Compilers and Options: How to set special options for various systems. • Compiling For Multiple Architectures: How to compile Bash for more than one kind of system from the same source tree. • Installation Names: How to set the various paths used by the installation. • Specifying the System Type: How to configure Bash for a particular system. • Sharing Defaults: How to share default configuration values among GNU programs. • Operation Controls: Options recognized by the configuration program. • Optional Features: How to enable and disable optional features when building Bash.