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niveum/packages/scripts/new-mac.sh

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2021-09-16 16:06:10 +02:00
#!/bin/sh
random_mac() {
openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//'
}
change_mac() {
old_mac="$(ip -j link show "$interface" | jq -r '.[].address')"
new_mac="$(random_mac)"
ip link set "$interface" address "$new_mac" 2>/dev/null && echo "$old_mac -> $new_mac"
}
interface="${1:-wlp3s0}"
ip link set "$interface" down
until change_mac; do :; done
ip link set "$interface" up