Linux command
blkid 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Example
sudo blkid
Example
sudo blkid -o list
Example
sudo blkid -s UUID -o value [/dev/sdXY]
Example
sudo blkid -s TYPE -o value [/dev/sdXY]
Example
sudo blkid -L [mylabel]
Example
sudo blkid -U [uuid]
Probe
sudo blkid -p [/dev/sdXY]
说明
blkid lists all recognized partitions and their attributes including Universally Unique Identifier (UUID), filesystem type, and label. It uses the libblkid library to locate and identify block devices.
参数
- -o, --output format
- Output format: full, value, list, device, udev, export
- -s, --match-tag tag
- Show only the specified tag (UUID, TYPE, LABEL, etc.)
- -c, --cache-file file
- Read from specified cache file instead of default
- -g, --garbage-collect
- Perform garbage collection on the blkid cache
- -l, --list-one
- Look up only one device matching parameters
- -L, --label label
- Look up device by filesystem label
- -U, --uuid uuid
- Look up device by filesystem UUID
- -p, --probe
- Low-level superblock probing mode (bypass cache)
- -i, --info
- Print I/O limits (sector size, etc.)
- -t, --match-token _NAME=value_
- Search for block devices with tokens named NAME that have the specified value
- -n, --match-types _list_
- Restrict probing to a comma-separated list of superblock types
- -u, --usages _list_
- Restrict probing to a comma-separated list of usage types (filesystem, raid, crypto, other)
FAQ
What is the blkid command used for?
blkid lists all recognized partitions and their attributes including Universally Unique Identifier (UUID), filesystem type, and label. It uses the libblkid library to locate and identify block devices.
How do I run a basic blkid example?
Run `sudo blkid` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
What does -o, --output format do in blkid?
Output format: full, value, list, device, udev, export