quota-displays users disk usage and limits

quota ”displays users' disk usage and limits

 quota [ -guvv  q ] quota [ -uvv  q ] user quota [ -gvv  q ] group 

quota displays users' disk usage and limits. By default, only the user quotas are printed.

-g	Prints group quotas for the group of which the user is a member.
-u	An optional flag, equivalent to the default.
-v	Displays quotas on file systems where no storage is allocated.
-q	Prints a more terse message, containing only information on filesystems where usage is over quota.