This text is a precursor to a course on Linux open files and the benefits of understanding them.
On Linux, all active network connections, keyboard activity, and text files in use are considered open files.
Using tools like lsof (lists open files), fuser (shows processes using a file), and proc (the Linux process viewer) can help users understand which files are open and by which processes.
Understanding open files is essential for Linux users as attackers often use file handles to gain stealthy persistence on a breached system, and open files can be tricky to identify and close.
Knowing how to identify and close these files is therefore crucial for security and system maintenance.
The title link leads to the bio of the author, Samxia99, but there is no additional information about the author or context for this snippet.
Thus, the intention of this message is unclear, albeit it seems to invite readers to learn more about Linux open files.