The quota command displays a user's disk usage and limits for all of the filesystems currently mounted. The -v option includes in the list filesystems where quotas are enabled, but no storage is currently allocated to the user.

# quota -v

Disk quotas for user root (uid 0): 
Filesystem  blocks   quota   limit   grace   files   quota   limit   grace
 /dev/hdc1       0       0       0               3       0       0        

The first column, blocks, shows how much disk space the root user is currently using on each filesystem listed. The following columns, quota and limit, refer to the limits currently in place for disk space. We will explain the difference between quota and limit, and the meaning of the grace column later on. The files column shows how many files the root user owns on the particular filesystem. The following quota and limit columns refer to the limits for files.