Create a 2GB swap file on Ubuntu

create-2gb-swap-on-ubuntu

#!/bin/bash

#
# https://meta.discourse.org/t/create-a-swapfile-for-your-linux-server/13880
#

install -o root -g root -m 0600 /dev/null /swapfile
dd if=/dev/zero of=/swapfile bs=1k count=2048k
mkswap /swapfile
swapon /swapfile
echo "/swapfile       swap    swap    auto      0       0" | sudo tee -a /etc/fstab
sudo sysctl -w vm.swappiness=10
echo vm.swappiness = 10 > /etc/sysctl.d/60-swappiness.conf