Related usage of quota disk Command in Linux system

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Quota

Displays the space and limits used by the disk.

Syntax: quota [- quvV] [user name.] Or quota [- gqvV] [group name.]

Supplementary note: execute the quota instruction to query the disk space limit and know how much space has been used.

Parameters:

-g lists the disk space limits for groups.

-Q concise list, listing only those that exceed the limit.

-u lists the user's disk space limits.

-v shows the space limit of the user or group on all storage devices attached to the system.

-V displays version information.

In the work of network management, because the resources of hard disk are limited, it is often necessary to set the user's linux disk quota for multi-user servers. This feature is even more necessary for public multi-user servers (free or paid). Quota is a tool for implementing linux disk quotas under RedHatlinux.

Example:

The code is as follows:

[root@linux~] # quota-guvs # shows the current quota limit for root

[root@linux~] # quota-vs-udmtsai # shows the disk quota of dmtsai as a user

Edquota

Edquota (edit quota)

Function description: edit the quota of a user or group.

Grammar: edquota [- p] [- ug] [user or group name.] Or edquota [- ug]-t

Additional note: the edquota preset uses vi to edit the quota settings of users or groups.

Parameters:

-u sets the user's quota, which is the default parameter.

-g set the quota of the group.

-p applies the quota settings of the source user to other users or groups.

-t set the grace period.

Example:

The code is as follows:

[root@linux ~] # edquota-u zhangy # sets the quota limit for zhangy as a user

[root@linux ~] # edquota-p zhangy-u tank # copy the quota limit value (30MB) of zhangy to the user tank

[root@linux] # edquota-t # revision grace time

Quotacheck

Quotacheck command: used to scan mounted file systems and set disk space and limits

Parameters:

-a scan all partitions

-b backup

-d debug mode

-c recreate the file

-f forced inspection

-I interaction mode

-v the runtime displays detailed processing information

-g shows the number of directory files occupied by the group

-u displays the number of directories occupied by each user

-M: "force" to scan quotacheck.

Example:

The code is as follows:

[root@linux ~] # quotacheck-avug # scan all partition in / etc/mtab with quota support

Quotacheck: Scanning / dev/hdb1 [/ disk2] done

Quotacheck: Checked 3 directories and 4 files

[root@linux ~] # quotacheck-avug-m # force scanning of mounted filesystem

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