quotaon, quotaoff —
turn filesystem quotas on and off
  
    | quotaon | [ -g] [-u]
      [-v] filesystem
      ... | 
  
    | quotaon | [ -g] [-u]
      [-v]-a | 
  
    | quotaoff | [ -g] [-u]
      [-v] filesystem
      ... | 
  
    | quotaoff | [ -g] [-u]
      [-v]-a | 
quotaon announces to the system that disk quotas should
  be enabled on one or more filesystems. quotaoff
  announces to the system that the specified filesystems should have any disk
  quotas turned off. The filesystems specified must have entries in
  /etc/fstab and be mounted.
  quotaon expects each filesystem to have quota files
  named quota.user and
  quota.group which are located at the root of the
  associated file system. These defaults may be overridden in
  /etc/fstab. By default both user and group quotas are
  enabled.
Available options:
  - -a
- If the -aflag is supplied in place of any
      filesystem names,quotaon/quotaoffwill
      enable/disable all the filesystems indicated in
      /etc/fstab to be read-write with disk quotas. By
      default only the types of quotas listed in
      /etc/fstab are enabled.
- -g
- Only group quotas listed in /etc/fstab should be
      enabled/disabled.
- -u
- Only user quotas listed in /etc/fstab should be
      enabled/disabled.
- -v
- Causes quotaonandquotaoffto print a message for each filesystem
      where quotas are turned on or off.
Specifying both -g and
    -u is equivalent to the default.
  - quota.user
- at the filesystem root with user quotas
- quota.group
- at the filesystem root with group quotas
- /etc/fstab
- filesystem table
Thequotaon command appeared in
  4.2BSD.