圖像來源，Getty Images
The first line consists of an "action", @, and a device path under sysfs (i.e. normally at /sys/devices/pci…). The rest of the lines contain key-value pairs that depend on the individual drivers and subsystems in the kernel. udev is then expected to match this information with rules it knows about in order to set up the new device.
，这一点在Line官方版本下载中也有详细论述
think about it:
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This story was originally featured on Fortune.com