#!/usr/bin/env bash
#
spinner(){
PROC=$1
BANNER=$2
while kill -0 $PROC >/dev/null 2>&1;do
    echo -ne "$BANNER"; sleep 0.05
done
echo "$BANNER - DONE"
return 0
}

ifconfig mon down &
spinner "$(pidof ifconfig)" $"Taking mon0 down..."

echo
ifconfig mon0 up &
spinner "$(pidof ifconfig)" $"Putting mon0 up..."

echo