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15. File Attributes > I-node Flags (ext2 Extended File Attributes)

I-node Flags (ext2 Extended File Attributes)

Some Linux file systems allow various i-node flags to be set on files and directories. This feature is a nonstandard Linux extension.

Note

The modern BSDs provide a similar feature to i-node flags in the form of file flags set using chflags(1) and chflags(2).

The first Linux file system to support i-node flags was ext2, and these flags are sometimes referred to as ext2 extended file attributes. Subsequently, support for i-node flags has been added on other file systems, including Btrfs, ext3, ext4, Reiserfs (since Linux 2.4.19), XFS (since Linux 2.4.25 and 2.6), and JFS (since Linux 2.6.17).


  

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