What option is used in /etc/fstab to specify user quotas?

The option utilized in the /etc/fstab file to specify user quotas is "usrquota." This designation is essential for enabling user quotas on a filesystem. When you include "usrquota" in the mount options for a filesystem in /etc/fstab, you are instructing the system to track disk usage for individual users. This option works in conjunction with quota management tools to enforce limits on the disk space users can occupy, thereby assisting in resource management on multi-user systems.

Understanding this configuration is crucial for system administrators who wish to maintain effective control over disk usage and ensure fair resource distribution among users. Properly setting up user quotas can help prevent any single user from consuming excessive amounts of disk space, which can lead to issues for others on the same system.