30 lines
366 B
Plaintext
30 lines
366 B
Plaintext
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#!/bin/sh
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ARP=arp
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MACTODEV=mac-to-devinfo
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IP=$1
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if [ -z "$IP" ]; then
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echo "Must specify IP address"
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fi
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if [ ! -x "$(which $ARP)" ]; then
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do_arp() {
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cat /proc/net/arp
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}
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ARPMACFIELD=4
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else
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do_arp() {
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$ARP -n
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}
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ARPMACFIELD=3
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fi
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ping -q -c 2 $IP >/dev/null
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MAC=$(do_arp|grep "$IP "|tr -s \ | cut -f$ARPMACFIELD -d\ )
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$MACTODEV $MAC
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