Linux handy block device viewing tool lsblk

Before looking at Linux under what pieces of equipment, usually with Fdisk or the direct ls/dev/to see very inconvenient. This tool belongs to Util-linux-ng package, it is installed on Rhel 6.1, it is good to use directly. Ubuntu is also available under the high version.

This tool, in particular, lists all the block devices, and also shows the dependencies between them.

"lsblk" is the list of block devices. In addition to RAM, the block device is displayed neatly in a standard tree-like output format.

[Email protected]:~# lsblkname   maj:min RM   SIZE RO TYPE mountpointsda      8:0    0 232.9G  0 disk├─sda1   8:1    0  46.6G  0 part/├─sda2   8:2    0     1K  0 part├─sda5   8:5    0   190M  0 Part/boot├─sda6   8:6    0   3.7G  0 Part [swap]├─sda7   8:7    0  93.1G  0 part/ Data└─sda8   8:8    0  89.2G  0 part/personalsr0     11:0    1  1024M  0 rom

The "lsblk-l" command displays block devices in list format (not tree format).

[Email protected]:~# lsblk-lname maj:min RM   SIZE RO TYPE mountpointsda    8:0    0 232.9G  0 disk sda1
   
    8:1    0  46.6G  0 part/sda2   8:2    0     1K  0 part sda5   8:5    0   190M  0 Part/bootsda6   8:6    0   3.7G  0 Part [swap]sda7   8:7    0  93.1G  0 part/datasda8   8:8    0  89.2G  0 part/personalsr0   11:0    1  1024M  0 rom
    

    
Note: LSBLK is the most useful and easiest way to learn the name of a newly inserted USB device, especially when you are working on a disk/block device on a terminal.