CHATTR(1) CHATTR(1) (NAME) chattr - (SYNOPSIS) chattr [ -RVf ] [ -v ] [ -p ] [ [] ] ... (DESCRIPTION) chattr ( a i ...) ext2/ext3/ext4 . (mode) +-=[aAcCdDeFijmPsStTux] . '+' '-' '=' . 'aAcCdDeFijmPsStTux' : (a), (A), (c), (C), (d), (D), (e), (F), (i), (j), (m), (P), (s), (S), (t), (T), (u), (x). lsattr(1) chattr : (E), (I), (N), (V). btrfs(5), ext4(5), mkfs.f2fs(8) xfs(5) . (OPTIONS) -R . -V chattr . -f . -v / . -p . (ATTRIBUTES) a a (append) . ( ) CAP_LINUX_IMMUTABLE . A A atime ( ) . / . c c . . . : . (: btrfs c C . nodatasum btrfs ). C C (Copy-on-Write) . . (: btrfs C . . C No_COW . C c ). d d dump(8) . D D (synchronously) dirsync . e e (extents) . chattr(1) . E E . chattr(1) lsattr(1) . F F (case-insensitive) . casefold . i i : . ( ) CAP_LINUX_IMMUTABLE . I I htree (hashed trees) . chattr(1) lsattr(1) . j j "data=ordered" "data=writeback" ext3 ext4 . "data=journal" . CAP_SYS_RESOURCE . m m . N N (inline) inode . chattr(1) lsattr(1) . P P (project ID) . . . s s . : . S S sync . t t ( tail- merging ). LILO tail-merging . : ext2 ext3 ext4 tail-merging . T T Orlov . ext3 ext4 . T /home /home/john /home/mary . Orlov . u u . (undeletion) . : . x x DAX (dax) . 'dax=never' . dax : . . V V fs-verity . ( - Merkle tree) . . chattr(1) lsattr(1) . (AUTHOR) chattr Remy Card . Theodore Ts'o . (BUGS AND LIMITATIONS) c, s u ext2 ext3 ext4 . a i . j ext3 ext4 . D 2.5.19 . (AVAILABILITY) chattr e2fsprogs . (SEE ALSO) lsattr(1), btrfs(5), ext4(5), mkfs.f2fs(8), xfs(5). e2fsprogs CHATTR(1)