# clear swapusage
free_memory=`free -m | awk 'NR==2{print $7}'`
used_swap=`free -m | awk 'NR==3{print $3}'`

if [ $free_memory -gt $used_swap ]; then
  sudo swapoff -a && sudo swapon -a
  echo "Swap usage cleared!"
else
  echo "Cannot clear swapusage, not enough memory!"
fi2