Special Attributes on files

# chattr +a file1

allows write opening of a file only append mode [man]

# chattr +c file1

allows that a file is compressed / decompressed automatically by the kernel [man]

# chattr +d file1

makes sure that the program ignores Dump the files during backup [man]

# chattr +i file1

makes it an immutable file, which can not be removed, altered, renamed or linked [man]

# chattr +s file1

allows a file to be deleted safely [man]

# chattr +S file1

makes sure that if a file is modified changes are written in synchronous mode as with sync [man]

# chattr +u file1

allows you to recover the contents of a file even if it is canceled [man]

# lsattr

show specials attributes [man]