Operation and MaintenanceLinux Operation and MaintenanceLearn to view hard disk information in Linux system
Learn to view block device information in Linux systems
In Linux systems, it is very important to understand and view block device information, especially for system administrators and For developers. Block devices refer to hardware devices that can be recognized by the operating system and used to store data, such as hard drives, solid-state drives, USB flash drives, etc. By viewing block device information, it can help users understand the status of each device in the system, so as to conduct reasonable management and optimization.
The following will introduce how to view block device information in the Linux system and give specific code examples.
1. Use the lsblk command to view block device information
lsblk is a command used to list block device information. It can display all block devices and hangers in the system. Download points and related information.
lsblk
Running the above command will list all block device information in the system, including device name, size, type, mount point, etc.
2. Use the blkid command to view the UUID information of the block device
The blkid command can view the UUID information of the block device. UUID is a character that uniquely identifies each block device. string.
blkid
Running the above command will list the UUID information of all block devices in the system, making it easier for users to identify and operate the devices when needed.
3. Use the fdisk command to view hard disk partition information
fdisk is a command used to process hard disk partitions and can view the hard disk partition status.
fdisk -l
Running the above command will list all hard disk partition information in the system, including device name, size, type, etc.
4. Use the dmesg command to view kernel information related to block devices
The dmesg command can display kernel-related information in the system, including block device initialization, mounting, etc. information.
dmesg | grep sd
Running the above command will display kernel information about the block device, including device name, mounting information, etc.
Through the above command examples, we can easily view block device information in the Linux system and understand the status of each device in the system. Mastering these commands can help users better manage and maintain the system and ensure the normal operation of the system.
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