Adding script to change en0 mac address to something random

bin/random_mac.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+INTERFACE=en0
+OUI="$HOME/dotfiles/bin/oui.txt"
+OUI_LEN=19004
+
+R=$(((RANDOM % ${OUI_LEN})+1))
+PREFIX=`head -$R $OUI | tail -1`
+CMD="sudo ifconfig ${INTERFACE} ether ${PREFIX}:"
+for i in `seq 1 6`; do
+    R=$(((RANDOM % 15)+1))
+    C=`echo "obase=16; $R" | bc`
+    CMD="$CMD$C"
+    if [ $((i % 2)) = 0 ] && [ $i != 6 ]; then
+        CMD="$CMD:"
+    fi
+done
+RESULT=`$CMD`
+echo $CMD