shell字符串截取特定内容

blkid命令，列出存储设备和存储设备信息web root@OpenWrt:/# blkid /dev/mmcblk0p1: TYPE="squashfs" /dev/mmcblk0p2: LABEL="nasetc" UUID="f4c72ecc-3e10-d251-8d3e-65c472a903a5" TYPE="ext4" /dev/sda1: UUID="A4C3-44C5" TYPE="

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