TestOut Linux Pro Practice Test 2025 – All-in-One Guide to Master Your Certification!

The command that is used to display currently modifying or monitoring file system changes is inotifywait. This command leverages the inotify system interface in Linux, which provides a mechanism for monitoring changes to files and directories in real-time. When you use inotifywait, it allows you to specify which files or directories you want to watch and what modifications you want to be notified about, such as modifications, deletions, or creations of files. This makes it a practical tool for scripts and applications that need to respond instantly to changes in the file system.

In contrast, while 'watch' can execute a command repeatedly and show the output, it is not specifically designed for monitoring file system changes. Similarly, 'fswatch' is a tool that can also monitor file system changes, but it is not as commonly available by default on all Linux distributions as inotifywait. The option 'monitor -f' does not exist as a standard Linux command for monitoring file system changes, making it an invalid choice. Thus, inotifywait stands out as the most appropriate command for this specific task.