Mastering chattr: A Comprehensive chattr Linux Tutorial
The chattr command is used to protect your files on a Linux system. This command lets you complete attributes for files so as to protect them further. In this Linux chattr tutorial, we will explain how to use this powerful utility.
The first thing you can do is to check what flags can be set with chattr. The +i flag, for example, makes a file immutable (read also the help of chattr(1)). My suggestion would be to run chattr +i filename in a terminal.
As noted in our chattr Linux tutorial, to change file attributes, you usually need superuser permissions. That means you may have to preface your commands with sudo.
chattr -e filename also frees you from any of the attributes that you might need to change later. This chattr Linux tutorial guides you through why it is important to know these attributes and use them in your day-to-day life for data safety.
Learning to use these commands will make you better a managing file security on your linux, and keep your data safe.