What command is used to change the quota for a specific user?

The command used to change the quota for a specific user is "edquota." This command opens up an editor that allows system administrators to modify the quota settings for a specified user. When executed, edquota provides an interface to set soft and hard limits on disk usage for that user, as well as other parameters related to their quotas.

Using "edquota" is essential in managing disk space effectively on a Linux system, as it gives the administrator control over individual user quotas. This helps prevent a single user from consuming excessive disk space, which could impact the overall performance and availability of the system for other users.

Other choices do not serve the purpose of modifying user quotas in the same direct manner. "quota" is primarily used to display current quotas for users but does not allow for changes. "setquota" is a command that can also be used to set quotas but typically requires specific parameters and is less commonly used compared to "edquota." "userquota" is not a standard command available in Linux systems for managing quotas.