Software & Apps Linux Check Your Linux File Space With the "Quota" Command Quotas help protect system disk space against over-use Share Pin Email Print vgajic / Getty Images Linux Switching from Windows By Juergen Haas Writer Former Lifewire writer Juergen Haas is a software developer, data scientist, and a fan of the Linux operating system. our editorial process Juergen Haas Updated February 15, 2020 The Linux quota command displays users' disk usage and limits. By default, only the user quotas are printed. Quota reports the quotas of all the filesystems listed in /etc/mtab. For NFS-mounted filesystems, a call to the rpc.rquotad on the server machine obtains the necessary information. The quota command may not be installed on your distribution. Synopsis The command follows the following structure: quota [ -F format-name ] [ -guvs | q ] quota [ -F format-name ] [ -uvs | q ] user quota [ -F format-name ] [ -gvs | q ] group Switches The quota command supports several switches that extend the base command's functionality: -F format-name: Show quota for specified format (i.e., don't perform format autodetection). Possible format names are: vfsold (version 1 quota), vfsv0 (version 2 quota), rpc (quota over NFS), xfs (quota on XFS filesystem).-g: Print group quotas for the group of which the user is a member. -u: An optional flag equivalent to the command's default behavior.-v: Display quotas on filesystems where no storage is allocated.-s: This flag will make quota try to choose units for showing limits, used space and used inodes.-q: Print a more terse message, containing only information on filesystems where usage is over quota. Usage Notes Specifying both -g and -u displays both the user quotas and the group quotas (for the user). Only the super-user may use the -u flag and the optional user argument to view the limits of other users. Non-super-users can use the -g flag and optional group argument to view only the limits of groups of which they are members. The -q flag takes precedence over the -v flag. See the related quotactl for additional functionality. Use the man command to see how a command is used on your particular computer. Different distributions and kernel releases perform in different ways, so check the manpages for information specific to your OS and architecture.