Linux, Module 5

The directory off the root where device files are typically stored.

A file used to specify which filesystems to mount automatically at boot time and queried by the mount command if an insufficient number of arguments are specified.

A file that stores a list of currently mounted filesystems.

A file that contains currently used device information.

The areas of a storage medium unable to store data properly.

Used to list UUIDs for filesystems and GPT partitions.

The unit of data commonly used by filesystem commands; a block can contain several sectors.

Storage devices that transfer data to and from the system in chunks of many data bits by caching the information in RAM; they are represented by block device files.

Used to partition hard disks; displays a graphical interface in which the user can select partitioning options.

The storage devices that transfer data to and from the system one data bit at a time; they are represented by character device files.

A series of tracks on a hard disk that are written to simultaneously by the magnetic heads in a hard disk drive.

A file used by Linux commands that represents a specific device on the system; these files do not have a data section and use major and minor numbers to reference the proper driver and specific device on the system, respectively.

Used to display disk free space by filesystem.

The limits on the number of files, or total storage space on a filesystem, available to a user.

Used to display directory usage.

Used to set a description label on an ext2/ext3/ext4 filesystem.

Used to specify quota limits for users and groups.

Used to unmount and eject CD/DVD removable media.

Used to set a description label on an exFAT filesystem.

Used to set a description label on a FAT filesystem.

Used to create and modify MBR and GPT partitions.

The errors in a filesystem structure that prevent the retrieval of stored data.

The process in which a filesystem is placed on a disk device.

Used to check the integrity of a filesystem and repair damaged files.

Used to identify any users or processes using a particular file or directory.

Used to create and modify GPT partitions. It uses an interface that is very similar to fdisk.

A disk quota that the user cannot exceed.

Used to display storage device information including type, size, major number, minor number, and mount point.

Used to display USB devices that are attached to the system, such as a USB flash memory drive.

Used to create LVM logical volumes.

Used to view LVM logical volumes.

Used to add space from VGs to existing LVM logical volumes.

Used to view LVM logical volumes.

Used to format (create) filesystems.

Used to create an ISO image from one or more files on the filesystem.

Used to re-create a device file, provided the major number, minor number, and type (character or block) are known.

Used to prepare newly created swap partitions for use by the Linux system.

Used to mount filesystems on devices to mount point directories.

The directory in a file structure to which something is mounted.

A process used to associate a device with a directory in the logical directory tree such that users can store data on that device.

Used to create and modify MBR and GPT partitions.

Used to request that partition tables be reloaded by the Linux kernel.

The block size used by the LVM when storing data on a volume group.

A partition that is used by the LVM.

See virtual filesystem.

Used to create LVM physical volumes.

Used to view LVM physical volumes.

Used to view LVM physical volumes.

Used to view disk quotas imposed on a user.

Used to deactivate disk quotas.

Used to activate disk quotas.

The limits that can be imposed on users and groups for filesystem usage.

Used to produce a report on quotas for a particular filesystem.

Used to change the size of an ext2/ext3/ext4 filesystem after creation; it is normally used after an LV has been extended to include additional space.

The filesystem containing most files that make up the operating system; it should have enough free space to prevent errors and slow performance.

The smallest unit of data storage on a hard disk; sectors are arranged into concentric circles called tracks and can be grouped into blocks for use by the system.

A disk quota that the user can exceed for a certain period of time.

Used to disable a partition for use as virtual memory on the Linux system.

Used to enable a partition for use as virtual memory on the Linux system.

The process of writing data stored in RAM to a filesystem.

The area on a hard disk that forms a concentric circle of sectors.

Used to modify ext2/ext3/ext4 filesystem parameters.

A system process used to manage device files for block and character devices.

Used to break the association between a device and a directory in the logical directory tree.

A unique identifier given to a filesystem or GPT partition when it is created; it can be used to identify that filesystem or GPT partition afterwards.

Used to create an LVM VG.

Used to view an LVM VG.

Used to add physical volumes to an LVM VG.

Used to view LVM VGs.

A special filesystem that is used by the Linux kernel for operating system use only; /sys, /dev, un, and /proc are examples of virtual filesystems.

A group of PVs that are used by the LVM.

Used to view and configure parameters for an XFS filesystem, including the description label.

Used to view XFS filesystem information and parameters.

Used to reorganize and optimize an XFS filesystem.

Used to change the size of an XFS filesystem after creation; it is normally used after an LV has been extended to include additional space.

Used to obtain usage information for an XFS filesystem; it can also be used to change the size of an XFS filesystem after creation.

Used to configure and manage disk quotas for an XFS filesystem.

Used to check the integrity of an XFS filesystem and repair damaged files.