ubuntu@local-goods:~$ sudo swapon -show
ubuntu@local-goods:~$ free -h
ubuntu@local-goods:~$ df -h
ubuntu@local-goods:~$ sudo fallocate -l 4G /swapfile
ubuntu@local-goods:~$ ls -lh /swapfile
ubuntu@local-goods:~$ sudo chmod 600 /swapfile
ubuntu@local-goods:~$ ls -lh /swapfile
ubuntu@local-goods:~$ sudo mkswap /swapfile
ubuntu@local-goods:~$ sudo swapon /swapfile
ubuntu@local-goods:~$ sudo swapon --show
ubuntu@local-goods:~$ free -h
