DOKK / manpages / debian 10 / quota / quotasync.1.en
QUOTASYNC(1) General Commands Manual QUOTASYNC(1)

quotasync - synchronize in-kernel file system usage and limits to disk format

quotasync [ -ugP ] mount-point...
quotasync [ -ugP ] -a
quotasync -h | -V

quotasync flushes file system usage and limits from kernel memory to quota files stored in the file system. By default only the user quotas are synchronized.

This tool can be useful if you want to display accurate quotas by tools that parse quota files, like repquota(8).

Synchronize user usage and limits.
Synchronize group usage and limits.
Synchronize project usage and limits.
Synchronize usage and limits on all file systems. You have to specify this option or to specify desired file systems.
Show program version information and exit.
Show program usage and exit.

If requested synchronization fails, or invalid option is given, quotasync will terminate with non-zero exit code. Otherwise it will return zero.

Quota file at the file system root (version 2 quota, non-XFS/GFS2 file systems).
Quota file at the file system root (version 1 quota, non-XFS/GFS2 file systems).
/etc/mtab
List of mounted file systems maintained by user space.
/proc/mounts
List of mounted file systems maintained by kernel.

quota(1), quotactl(2), mount(8), quotacheck(8), quotaon(8), repquota(8), warnquota(8).