Linux provides quite a few commands to look into file system types. Here's a look at the various file system types used by Linux systems and the commands that will identify them.

Most Linux systems today use a file system type called ext4. The “ext” part stands for “extended” and the 4 indicates that this is the 4th generation of this file system type.

The newest member of the Ext file system, Ext4, became an official part of Linux last year with the release of the Linux 2.6.28 kernel. Since then, it’s become the default file system in some ...

The extended filesystem, otherwise known as ext, has been a fundamental part of Linux since before the 1.0 release in 1994. Currently the filesystem is on its fourth major revision, in use since it… ...

File extensions are mostly meaningless to the content of a file—they’re just a shorthand guide so an operating system can figure out which program should load them.