How to Extend Swap Space using Swap file in Linux

gistfile1.txt

//1. Check the size of existing swap space
free -m

//2.Create a swap file of size 1 GB
sudo fallocate -l 1G /swap_file

//3.Secure the swap file
chmod 600 /swap_file

//4.Enable the Swap Area on Swap File
mkswap /swap_file

//5.Add the swap file entry in fstab file
echo "/swap_file  swap   swap   defaults   0 0" >> /etc/fstab

//6. Extend Swap Space
swapon /swap_file

//Note: To disable the swap file
swapoff /swap_file