Bash – Create Swap File

durukan@testserver:~$ sudo fallocate -l 1G /swapfile
durukan@testserver:~$ sudo chmod 600 /swapfile
durukan@testserver:~$ sudo mkswap /swapfile
durukan@testserver:~$ sudo swapon /swapfile
durukan@testserver:~$ sudo echo "/swapfile swap swap defaults 0 0" >> /etc/fstab
durukan@testserver:~$ sudo free -h