TestOut Linux Pro Practice Test 2026 - Free Linux Pro Practice Questions and Study Guide

To verify that the ownership of a file has changed in Linux, the ls -l command is the appropriate choice. This command lists files and directories in a detailed format, providing essential information such as file permissions, number of links, owner, group, size, and the last modification date. The details shown include the username of the file owner and the group name, making it easy to confirm if any changes in ownership have occurred.

For instance, when you run the command, you'll see an output where the third column indicates the owner of the file, and the fourth column indicates the group. Any modification in ownership will be clearly reflected in this part of the output.

The other options do not provide detailed ownership information. The ls -h command displays file sizes in a more human-readable format but does not affect ownership details. The ls -r command lists files in reverse order but lacks ownership data as well. The ls -a command includes hidden files in the listing but does not include detailed ownership information either. Thus, the ls -l command is specifically designed to provide a comprehensive overview of file ownership and attributes, making it the correct choice for this purpose.