Create a swapfile on Linux

2GBswapfilelinux.sh

echo "Creating your 2GB swapfile..."

sudo fallocate -l 2G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile

echo "Swapping on"
sudo swapon /swapfile

echo "Making swapfile permanent"

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab

echo "All done! run free -m to view your swapfile"