Linux Swap and Swapfile
From WikiMLT
Add/Remove Swapfile Short Guide
Swap On
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo nano /etc/fstab
/swapfile swap swap defaults 0 0
Swap Off
sudo swapoff -a # sudo swapoff /swapfile
sudo rm -f /swapfile
sudo nano /etc/fstab
#/swapfile swap swap defaults 0 0
Check the swap and its usage
sudo swapon --show
sudo free -h
Swap On/Off Scripts
swap-on.sh
#!/bin/bash
sudo fallocate -l 4G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo sed 's_^#/swapfile_/swapfile_' /etc/fstab -i
echo
sudo swapon --show
echo
sudo free -h
swap-off.sh
#!/bin/bash
sudo swapoff /swapfile
sudo rm -f /swapfile
sudo sed 's_^/swapfile_#/swapfile_' /etc/fstab -i
echo
sudo swapon --show
echo
sudo free -h
