Editing Inode

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[[wikipedia:inode]]


[[filename]] to inode lookup


Inodes store information about files and directories (folders), such as file ownership, access mode (read, write, execute permissions), and file type.



Within a POSIX system, a [[file]] has the following attributes[10] which may be retrieved by the <code>[[stat]]</code> system call:

* Device ID (this identifies the device containing the file; that is, the scope of uniqueness of the serial number).
* File serial numbers. (Inode)
* The file mode which determines the file type and how the file's owner, its group, and others can access the file.
* A link count telling how many hard links point to the inode.
* The User ID of the file's owner.
* The Group ID of the file.
* The device ID of the file if it is a device file.
* The size of the file in bytes.
* Timestamps telling when the inode itself was last modified (ctime, inode change time), the file content last modified (mtime, modification time), and last accessed (atime, access time).
* The preferred I/O block size.
( The number of blocks allocated to this file.



== Related terms ==
* <code>[[sar -F]]</code>
* <code>[[df]] -i</code> or <code>[[df --inodes]]</code>
* <code>[[ls -i]]</code>
* [[File descriptor]]
* <code>[[stat]]</code>
* [[inotify]]
* <code>[[noatime]]</code> [[mount option]]

== See also ==
* {{files}}

[[Category:File systems]]