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7z
quotacheck - Linux命令大全 - 笔下光年
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quotacheck
检查磁盘的使用空间与限制 ## 补充说明 **quotacheck命令** 通过扫描指定的文件系统,获取磁盘的使用情况,创建、检查和修复磁盘配额(quota)文件。执行quotacheck指令,扫描挂入系统的分区,并在各分区的文件系统根目录下产生quota.user和quota.group文件,设置用户和群组的磁盘空间限制。 如果在执行quotacheck命令时出现了以下信息: ```shell quotacheck: Your kernel probably supports journaled quota but you are not using it. Consider switching to journaled quota to avoid running quotacheck after an unclean shutdown. ``` 可以考虑将之前在文件系统的配置文件中添加的quota相关字段修改为:`usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv1`,然后重新挂载文件系统:`mount -vo remount 挂载目录`(注意,如果这一步操作出现了任何问题,千万不要试图通过重启解决!将配置文件恢复原状是一个好的选择) ### 语法 ```shell quotacheck(选项)(参数) ``` ### 选项 ```shell -a:扫描在/etc/fstab文件里,有加入quota设置的分区; -c:对目标文件系统进行一次新的扫描,并创建新的quota文件; -d:详细显示指令执行过程,便于排错或了解程序执行的情形; -g:扫描磁盘空间时,计算每个群组识别码所占用的目录和文件数目; -R:排除根目录所在的分区; -u:扫描磁盘空间时,计算每个用户识别码所占用的目录和文件数目; -v:显示指令执行过程。 ``` ### 参数 文件系统:指定要扫描的文件系统。 ### 实例 将所有的在`/etc/mtab`内,含有quota支持的partition进行扫描: ```shell [root@linux ~]# quotacheck -avug quotacheck: Scanning /dev/hdb1 [/disk2] done quotacheck: Checked 3 directories and 4 files ``` 强制扫描已挂载的filesystem: ```shell [root@linux ~]# quotacheck -avug -m ``` 扫描指定的filesystem: ```shell [root@linux ~]# quotacheck -cvug /disk2 ```
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