1 | blkid
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2 | ===
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3 |
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4 | 查看块设备的文件系统类型、LABEL、UUID等信息
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5 |
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6 | ## 补充说明
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7 |
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8 | 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。
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9 |
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10 | ### 语法
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11 |
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12 | ```shell
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13 | blkid -L | -U
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14 | blkid [-c ] [-ghlLv] [-o] [-s ][-t ] -[w ] [ ...]
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15 | blkid -p [-s ] [-O ] [-S ][-o] ...
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16 | blkid -i [-s ] [-o] ...
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17 | ```
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18 |
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19 | ### 选项
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20 |
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21 | ```shell
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22 | -c <file> # 指定cache文件(default: /etc/blkid.tab, /dev/null = none)
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23 | -d # don't encode non-printing characters
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24 | -h # 显示帮助信息
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25 | -g # garbage collect the blkid cache
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26 | -o <format> # 指定输出格式
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27 | -k # list all known filesystems/RAIDs and exit
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28 | -s <tag> # 显示指定信息,默认显示所有信息
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29 | -t <token> # find device with a specific token (NAME=value pair)
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30 | -l # look up only first device with token specified by -t
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31 | -L <label> # convert LABEL to device name
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32 | -U <uuid> # convert UUID to device name
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33 | -v # 显示版本信息
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34 | -w <file> # write cache to different file (/dev/null = no write)
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35 | <dev> # specify device(s) to probe (default: all devices)
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36 | Low-level probing options:
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37 | -p # low-level superblocks probing (bypass cache)
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38 | -i # gather information about I/O limits
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39 | -S <size> # overwrite device size
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40 | -O <offset> # probe at the given offset
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41 | -u <list> # filter by "usage" (e.g. -u filesystem,raid)
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42 | -n <list> # filter by filesystem type (e.g. -n vfat,ext3)
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43 | ```
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44 |
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45 | ### 实例
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46 |
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47 | 1、列出当前系统中所有已挂载文件系统的类型:
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48 |
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49 | ```shell
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50 | sudo blkid
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51 | ```
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52 |
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53 | 2、显示指定设备 UUID:
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54 |
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55 | ```shell
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56 | sudo blkid -s UUID /dev/sda5
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57 | ```
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58 |
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59 | 3、显示所有设备 UUID:
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60 |
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61 | ```shell
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62 | sudo blkid -s UUID
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63 | ```
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64 |
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65 | 4、显示指定设备 LABEL:
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66 |
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67 | ```shell
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68 | sudo blkid -s LABEL /dev/sda5
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69 | ```
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70 |
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71 | 5、显示所有设备 LABEL:
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72 |
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73 | ```shell
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74 | sudo blkid -s LABEL
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75 | ```
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76 |
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77 | 6、显示所有设备文件系统:
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78 |
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79 | ```shell
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80 | sudo blkid -s TYPE
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81 | ```
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82 |
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83 | 7、显示所有设备:
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84 |
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85 | ```shell
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86 | sudo blkid -o device
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87 | ```
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88 |
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89 | 8、以列表方式查看详细信息:
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90 |
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91 | ```shell
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92 | sudo blkid -o list
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93 | ```
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94 |
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95 |
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