btrfs-qgroup (8)     - control the quota group of a btrfs filesystem
btrfs-quota (8)      - control the quota of a btrfs filesystem
doveadm-quota (1)    - Initialize/recalculate or show current quota usage
pure-quotacheck (8)  - Update virtual quota files for Pure-FTPd
quotactl (2)         - manipulate disk quotas
smbcquotas (1)       - Set or get QUOTAs of NTFS 5 shares
systemd-quotacheck (8) - File system quota checker logic
systemd-quotacheck.service (8) - File system quota checker logic
xfs_quota (8)        - manage use of quota on XFS filesystems