Which command will show the current quota limits imposed on a user?

The command that displays the current quota limits imposed on a user is the quota command. When executed, it presents a summary of the disk usage and limits for the user specified. This includes information about both the soft and hard limits set for file storage, allowing users to see their current usage compared to the allocated quota.

Other commands in the provided options serve different purposes. For instance, the repquota command is typically used by administrators to report and summarize quotas for all users on a filesystem, rather than on an individual user basis. On the other hand, edquota is used to edit the quota settings for a user, allowing for modifications rather than a snapshot of current usage. Lastly, setquota is a command that can be used to set or modify disk quotas for users or groups, but it does not display current usage or limits. Therefore, the quota command is the most suitable choice for viewing a user's current quota limits.