Swap-Check-Make.sh

Swap-Check-Make.sh

#!/bin/bash

# Check if swap is enabled
if swapon --show | grep -q "swap"; then
  echo "Swap is already enabled."
else
  echo "Swap is not enabled. Creating a swap file..."

  # Create a 2GB swap file using fallocate
  fallocate -l 2G /swapfile

  # Set the correct permissions
  chmod 600 /swapfile

  # Set up the swap area
  mkswap /swapfile

  # Enable the swap
  swapon /swapfile

  # Verify swap is active
  swapon -s

  # Backup current fstab before modification
  cp /etc/fstab /root/fstab_BAK

  # Add the swap entry to /etc/fstab for persistence across reboots
  echo "/swapfile   none    swap    sw    0   0" >> /etc/fstab

  # Clear the screen and display updated fstab
  clear
  cat /etc/fstab

  echo "Swap file created and enabled. Entry added to /etc/fstab."
fi