how do I clear the swap? I know it isn't something that is needed, but I still want to know how to do it.
this is what I'm doing so far:

```bsh
# to check if there is enough space in ram for the swap contents:
free -m

```

```bsh
sudo swapoff -a
sudo chmod 600 /var/swap
sudo mkswap /var/swap
sudo swapon -a

```

that works for clearing the swap, but it doesn't turn on again because it isn't being used until I reboot.