quot - summarize filesystem ownership
quot [ -acfguvi ] [ filesystem... ]
quot displays the number of kilobytes in the named filesystem currently
owned by each user or group. Note that this utility currently works
only for XFS.
-a Generate a report for all mounted filesystems giving the number
of kilobytes used by each user or group.
-c Display three columns giving file size in kilobytes, number of
files of that size, and cumulative total of kilobytes in that
size or smaller file. The last row is used as an overflow
bucket and is the total of all files greater than 500 kilobytes.
-f Display count of kilobytes and number of files owned by each
user or group.
-g Report on groups.
-u Report on users (the default).
-v Display three columns containing the number of kilobytes not
accessed in the last 30, 60, and 90 days.
-i Ignore mountpoints mounted by automounter.
-T Avoid truncation of user names longer than 8 characters.
-q Do not sort the output.
/etc/mtab mounted filesystem table
/etc/passwd default set of users
/etc/group default set of groups
Currently, only the XFS filesystem type is supported.