Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.


  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

14. File Systems > I-nodes

I-nodes

A file system’s i-node table contains one i-node (short for index node) for each file residing in the file system. I-nodes are identified numerically by their sequential location in the i-node table. The i-node number (or simply i-number) of a file is the first field displayed by the ls -li command. The information maintained in an i-node includes the following:

  • File type (e.g., regular file, directory, symbolic link, character device).

  • Owner (also referred to as the user ID or UID) for the file.

  • Group (also referred to as the group ID or GID) for the file.

  • Access permissions for three categories of user: owner (sometimes referred to as user), group, and other (the rest of the world). File Permissions provides further details.


  

You are currently reading a PREVIEW of this book.

                                                                                                                    

Get instant access to over $1 million worth of books and videos.

  

Start a Free Trial


  
  • Safari Books Online
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint