Create and enable/disable a swap file

create_and_enable_1G_swap.sh

#!/bin/bash
# Create 1GB swap file (change count if needed)
sudo dd if=/dev/zero of=/swapfile bs=1G count=1
# Fix permissions
sudo chmod 600 /swapfile
# Make swap with given file
sudo mkswap /swapfile
# Enable swap
sudo swapon /swapfile
# Check Swap
sudo swapon -s

disable_swap.sh

#!/bin/bash
sudo swapoff -a