Linux supports a large number of file systems, from journaling to clustering to cryptographic. Linux is a wonderful platform for using and developing standard and more exotic file systems. This article explores the virtual file system (VFS) in the Linux kernel and then reviews some of the major structures that tie file systems together. You can also take this Linux file system tutorial to learn more about how to control the mounting and un-mounting of filesystems, examine existing filesystems, create filesystems, and perform remedial actions on damaged filesystems.