Using lsof for System Administration - Listing Open Files and Users

Explore the powerful lsof command for system administration in this 20-minute video tutorial. Learn how to list open files on your Linux system, understand the command's output columns, and discover practical applications. Master techniques to narrow down results by name, process, or PID, and see real-life examples of using lsof. Gain insights on excluding users from output and finding IP addresses. Enhance your Linux system administration skills with this comprehensive breakdown of the lsof utility.

Introduction
Overview of lsof Command
Columns Breakdown: Command, PID, TID, User, Node, Name
See the Number of Open Files
Narrow Down the Output: Name & Process
Narrow Down the Output: PID
Real-life Example
Exclude a User from the Output
Find Out the IP Address
Conclusion