Tip #182 MAC address conversion
Convert mac addresses such as 000000abde00 into 00:00:00:ab:de:00awk '{for(i=10;i>=2;i-=2)$0=substr($0,1,i)":"substr($0,i+1);print}' macaddress_list
sed 's/\(..\)/\1:/g;s/:$//' macaddress_list
// sil at infiltrated.net
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