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I had problems in Ubuntu while trying to edit /etc/resolv.conf, even with sudo I couldn't make any change. After a 2 minutes search on google I found this command.
Hope someone finds it useful.
It works like chmod, with + and - to denote which attributes are being added and which are being removed.
See other attributes on man pages or on wikipedia http://en.wikipedia.org/wiki/Chattr
There are 2 alternatives - vote for the best!
If you can do better, submit your command here.
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