LINUX 偵測 有線網路插拔
You want to look at the nodes in
/sys/class/net/
I experimented with mine:
Wire Plugged in:
eth0/carrier:1
eth0/operstate:unknown
Wire Removed:
eth0/carrier:0
eth0/operstate:down
Wire Plugged in Again:
eth0/operstate:up
eth0/carrier:1
Side Trick: harvesting all properties at once the easy way:
grep "" eth0/*
This forms a nice list of key:value
pairs.
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