The repquota command is used to check the status of a user’s defined quota, along with the disk space and the number of files used.
This command gives a summary of the user’s quota, i.e., how much space and files are left for the particular user. Each user has a defined quota in Linux. This is done mainly for security as it restricts files from unwanted access. The quota can be given to a single user or to a group of users.