Which command enables editing of user and group quotas directly?

The command that enables editing of user and group quotas directly is 'edquota'. This tool is specifically designed for administrative tasks related to setting and modifying filesystem quotas for individual users and groups. When you use 'edquota', it opens a text editor with a predefined format for quota management, allowing you to directly edit the limits for the specified user or group.

This command is particularly useful because it provides a straightforward interface directly in a text editor, making it easier for administrators to see and change the quota settings in a clear manner. By allowing changes to both soft and hard limits within the editor, it ensures that the administrator has a simple and efficient way to manage quota configurations.

Understanding the function of 'edquota' is crucial for effective quota management in Linux systems, as it prioritizes direct access for configuration, unlike the other commands listed, which serve different purposes such as displaying quota information or reporting.