Create Swap File | Debian | Ubuntu

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

sudo cp /etc/fstab /etc/fstab.save

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

sudo sysctl vm.swappiness=10
sudo sysctl vm.vfs_cache_pressure=50

sudo nano /etc/sysctl.conf

sudo swapon --show

swapoff /swapfile
sudo rm -rf /swapfile