How to use the chattr command ?
This is an admin command. Only the Root user can change the file attributes/Process. chattr command is used to change the file attributes.
Syntax:
chattr [options] filename
+i - Make the file as Read-Only.
-i - Remove the Read-Only.
+a - Can't open file for writing
-a - Open file for writing.
+S - The changes in the file are written synchronously on the disk.
Example:
chattr +i file.txt
chattr -i file.txt
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