вторая расширенная файловая система (the second extended file system)
Атрибуты файлов (File attributes)
The ext2, ext3, and ext4 file systems support setting the
following file attributes on Linux systems using the chattr(1)
utility:
a - append only
A - no atime updates
d - no dump
D - synchronous directory updates
i - immutable
S - synchronous updates
u - undeletable
In addition, the ext3 and ext4 file systems support the following
flag:
j - data journaling
Finally, the ext4 file system also supports the following flag:
e - extents format
For descriptions of these attribute flags, please refer to the
chattr(1) man page.
