chattr in Linux

chattr is known as one of the permission util to set additional attributes to file.This util even can create a magic by setting a file as an immutable which root can delete the file if he wish to.

First of all, the common commands in using chattrs are + and -

chattr +i ( to set the attribute)

chattr -i ( to unset the attribute)

For example :
chattr +i test.odt ( To set the immutable permission )
chattr -i test.odt ( To unset the immutable permission )

A normal ls -l will not show the attributes that chattr sets.
So we use lsattr to see them.

To know more about other available attributes, check it here

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