Add swap on VPS

	#!/usr/bin/env bash

	if [ "$(whoami)" != "root" ]; then
	SUDO=sudo
	fi
	if $(type apt-get > /dev/null 2>&1); then
	${SUDO} fallocate -l 2G /swapfile
	else
	${SUDO} dd if=/dev/zero of=/swapfile count=8 bs=256MiB
	fi
	${SUDO} chmod 0600 /swapfile
	${SUDO} mkswap /swapfile
	${SUDO} swapon /swapfile
	${SUDO} cp /etc/fstab /etc/fstab.bak
	echo "/swapfile none swap sw 0 0" \| ${SUDO} tee -a /etc/fstab
	echo 10 \| ${SUDO} tee /proc/sys/vm/swappiness
	echo vm.swappiness = 10 \| ${SUDO} tee -a /etc/sysctl.conf
	echo fs.inotify.max_user_watches=524288 \| ${SUDO} tee -a /etc/sysctl.conf
	${SUDO} chown root:root /swapfile
	${SUDO} sysctl -p
	exit 0

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swap.sh

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