The UNIX File System

• File: named collection of data stored on a disk
  UNIX File: ordered sequence of bytes

• File system: organizational framework for storing files
  DOS FAT: linked list of clusters
  i-node table: file system entries identified by an i-node (integer)

• inode has direct, indirect block numbers

• UNIX File Types

• File System Tree

• Pathnames

• Permissions for Files and Directories