filefrag:tldr:1785d

The command "filefrag -v ${filenames}" is used to display detailed information about file fragmentation in a Linux system.

Explanation of the components:

• "filefrag" is the command itself, which is used to analyze files and display fragmentation information.
• "-v" is an option or flag that stands for "verbose." When used with the "filefrag" command, it provides more detailed output, including additional information about the file.
• "${filenames}" is a placeholder for one or more file names or paths. By replacing it with the actual file names or paths, the command will run on the specified files and display relevant fragmentation information for each file.

In summary, the command "filefrag -v ${filenames}" analyzes specified files and provides verbose output containing detailed information about file fragmentation, such as the number of extents (continuous blocks of data) and their respective positions within the file.