swap.sh

gistfile1.txt

#!/bin/sh

set -eu

sudo fallocate -l 2G /swapfile

ls -lh /swapfile

sudo chmod 600 /swapfile

sudo mkswap /swapfile

sudo swapon /swapfile

sudo swapon --show

free -h

sudo cp /etc/fstab /etc/fstab.bak
sudo cp /etc/sysctl.conf /etc/sysctl.conf.old

echo '/swapfile none swap sw 0 0' | sudo tee -a /etc/fstab
echo 'vm.swappiness=10' | sudo tee -a /etc/sysctl.conf

sudo sysctl -p