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blkid

查看块设备的文件系统类型、LABEL、UUID等信息

补充说明

在Linux下可以使用 blkid命令 对查询设备上所采用文件系统类型进行查询。blkid主要用来对系统的块设备(包括交换分区)所使用的文件系统类型、LABEL、UUID等信息进行查询。要使用这个命令必须安装e2fsprogs软件包。

语法

blkid -L | -U
blkid [-c ] [-ghlLv] [-o] [-s ][-t ] -[w ] [ ...]
blkid -p [-s ] [-O ] [-S ][-o] ...
blkid -i [-s ] [-o] ...

选项

-c <file>   指定cache文件(default: /etc/blkid.tab, /dev/null = none)
-d          don't encode non-printing characters
-h          显示帮助信息
-g          garbage collect the blkid cache
-o <format> 指定输出格式
-k          list all known filesystems/RAIDs and exit
-s <tag>    显示指定信息,默认显示所有信息
-t <token>  find device with a specific token (NAME=value pair)
-l          look up only first device with token specified by -t
-L <label>  convert LABEL to device name
-U <uuid>   convert UUID to device name
-v          显示版本信息
-w <file>   write cache to different file (/dev/null = no write)
<dev>       specify device(s) to probe (default: all devices)
Low-level probing options:
-p          low-level superblocks probing (bypass cache)
-i          gather information about I/O limits
-S <size>   overwrite device size
-O <offset> probe at the given offset
-u <list>   filter by "usage" (e.g. -u filesystem,raid)
-n <list>   filter by filesystem type (e.g. -n vfat,ext3)

实例

1、列出当前系统中所有已挂载文件系统的类型:

sudo blkid

2、显示指定设备 UUID:

sudo blkid -s UUID /dev/sda5

3、显示所有设备 UUID:

sudo blkid -s UUID

4、显示指定设备 LABEL:

sudo blkid -s LABEL /dev/sda5

5、显示所有设备 LABEL:

sudo blkid -s LABEL

6、显示所有设备文件系统:

sudo blkid -s TYPE

7、显示所有设备:

sudo blkid -o device

8、以列表方式查看详细信息:

sudo blkid -o list
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