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hello and welcome to another video in this one were going to be talking about how to make an undeletable file even with root um and why you might want to do this ive ive seen this used a couple of times for debugging purposes and uh once during a security incident um but yeah lets lets jump into it okay so im gonna make a file today uh i guess technically it will still be deletable in the end by undoing what im going to do but im going to show you a technique that makes a file truly immutable um which prevents you know deletion renaming contents changing etc um and uh yeah lets lets jump into it okay so im gonna put you know hello world into some file called f and we are going to run a command called chatter which is change attributes and we are going to set a very specific attribute on this file the i attribute which is the immutable attribute and this allows you to prevent um if we search further down here lets see dash i uh why is it not unusual why are we not able to fi