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UNIX/LINUX Command – quota


quota—Display disk usage and limits


quota [ -guv | q ]
quota [ -uv | q ] user
quota [ -gv | q ] group


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

-g Print group quotas for the group of which the user is a member. The optional –u flag is equivalent to the default.
-v Will display quotas on filesystems where no storage is allocated.
-q Print a more terse message, containing only information on filesystems where usage is over quota.

Specifying both –g and –u displays both the user quotas and the group quotas (for the user).

Only the superuser may use the –u flag and the optional user argument to view the limits of other users. Non-superusers can use the –g flag and optional group argument to view only the limits of groups of which they are members.

The –q flag takes precedence over the –v flag.

quota reports the quotas of all the filesystems listed in /etc/fstab. For filesystems that are NFS-mounted, a call to the rpc.rquotad on the server machine is performed to get the information. If quota exits with a nonzero status, one or more filesystems are over quota.


quota.user Located at the filesystem root with user quotas
quota.group Located at the filesystem root with group quotas
/etc/fstab To find filesystem names and locations

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