blkid - Command Generator Online

blkid

`blkid` is a Linux command line tool used to view the UUID and file system type of block devices.

device name

display all device information (-a)

cache file system and device information to speed up output (-c)

specify the device file name, such as /dev/sda1 (-d)

display help information (-h)

display the device's file system type (-i)

only display local devices (-l)

output PARTUUID information (-p)

specify the output key (-s)

specify the output format, such as json, udev, vol_id (-o)

specify the device type, such as swap, ext4 (-t)

output UUID information (-u)

Example

View the UUID and file system type of all block devices: sudo blkid
View the UUID and file system type of a specified device file name: sudo blkid /dev/sda1
Output all block device information in key=value format: sudo blkid -p
Only display the UUID and file system type of local devices: sudo blkid -l
Output the file system type of a specified device file name: sudo blkid -i /dev/sda1
Output the UUID and file system type of a specified device type, such as only the UUID and file system type of a swap partition: sudo blkid -t swap