echo ${output}
}
+function mac_format() {
+ local mac=${1}
+
+ local output
+
+ if [ "${#mac}" = "12" ]; then
+ # Add colons (:) to mac address
+ output=${mac:0:2}
+ local i
+ for i in 2 4 6 8 10; do
+ output="${output}:${mac:${i}:2}"
+ done
+ fi
+
+ assert mac_is_valid ${output}
+
+ echo "${output}"
+}
+
function mac_is_valid() {
local mac=${1}