Often abbreviated as UFS, the Unix File System provides data storage and organization for Unix and Unix-based operating systems. Based on the file system seen in Version 7 Unix, the file system has a maximum volume size and file system of 8 zebibytes.
Common UFS Implementations
Many software vendors use UFS in their proprietary Unix operating systems. This includes:
While there is a certain level of cross-compatibility between these platforms, full compatibility is considered spotty.
Common System Directories
Although some implementations may contain additional (or fewer) system files, there are some files that are included in most Unix file systems.
Most of these directories are self-explanatory, but they can be confusing to a novice user. To further clarify their importance, it helps to understand some of the most common file types found in the UFS.
Common File Types
The UFS treats every component of your system as an individual file. This includes virtual elements like directories and actual files as well as physical components like hard drives and printers. Most Unix file systems, including the UFS, contain six default file types, or categories.
Now that you have a better understanding of the common system directories and file types, you're well on your way to learning the Unix file system.
You may read more about the Unix File System (UFS) in Wikipedia: Unix File System.