Protect directory from an overzealous rm -rf *

sudo chattr -R +i dirname
-R Recursively change attributes of directories and their contents. +i to set the immutable bit to prevent even root from erasing or changing the contents of a file.

6
By: mamue
2011-05-17 05:05:49

2 Alternatives + Submit Alt

What Others Think

chattr is a utility for e2fs; this command may not work with xfs, jfs, or reiserfs. Using 'chattr +i' has some odd side-effects. File permissions will still show "writable", but any attempt to write to the file will return 'permission denied,' even as root. Users and other sysadmins will get confused. Setting a directory as immutable will also prevent adding new files. I think you meant to say chattr -R +u dirname # undeletable
Mozai · 383 weeks and 6 days ago
Keep in mind...from the chattr man page: "The ?c?, ?s?, and ?u? attributes are not honored by the ext2 and ext3 filesystems as implemented in the current mainline Linux kernels." See here for a patch http://lwn.net/Articles/211193/
DaveQB · 382 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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