quotacheck

Scan filesystems and build quota files

TLDR

Check quotas on all filesystems

$ sudo quotacheck --all

Force check (may damage quota files)

$ sudo quotacheck --force [mountpoint]

Check in debug mode

$ sudo quotacheck --debug [mountpoint]

Check with verbose output

$ sudo quotacheck --verbose [mountpoint]

Check user quotas

$ sudo quotacheck --user [user] [mountpoint]

Check group quotas

$ sudo quotacheck --group [group] [mountpoint]

SYNOPSIS

quotacheck [-a] [-f] [-v] [-u user] [-g group] [mountpoint]

quotacheck scans filesystems for disk usage and creates or verifies quota files. It examines each file to determine how much space each user and group consumes.
Running quotacheck with quotas enabled can corrupt quota files, so quotas should typically be turned off first. The tool creates aquota.user and aquota.group files.

PARAMETERS

-a, --all

Check all mounted non-NFS filesystems

-f, --force

Force check even with quotas enabled

-v, --verbose

Display progress information

-d, --debug

Enable debug mode

-u, --user _user_

Check user quotas only

-g, --group _group_

Check group quotas only

-c

Create quota files if missing

CAVEATS

Best run with quotas turned off. Force flag can cause data loss. May take long time on large filesystems. Requires root privileges.

HISTORY

quotacheck is part of the Linux disk quota system, derived from BSD Unix quotas. It's essential for initializing and maintaining disk quota enforcement.