Common Linux Commands
lsblk
The lsblk command is used to list all available block devices and the dependencies between them, except the RAM disks. Block devices include hard disks, flash memory, and CD-ROM.
By default, the lsblk command lists all block devices in a tree structure. Start the terminal and run the following command:
lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 202:0 0 40G 0 disk ├─sda1 202:1 0 4G 0 part [SWAP] └─sda2 202:2 0 36G 0 part / sdb 202:16 0 10G 0 disk
The parameters are as follows:
- NAME: block device name
- MAJ:MIN: primary and secondary device numbers
- RM: whether the device is removable. 0 indicates no and 1 indicates yes.
- SIZE: device capacity
- RO: whether the device is read-only. 0 indicates no and 1 indicates yes.
- TYPE: block device type (disk or a disk partition)
- MOUNTPOINT: mount point of a device
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