Created
June 14, 2024 10:12
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| #!/bin/bash | |
| # Define swap file location and size | |
| swapfile=/swapfile | |
| size=20G | |
| # Check if the swapfile already exists | |
| if [ -f $swapfile ]; then | |
| echo "Swap file $swapfile already exists. Removing it first." | |
| swapoff $swapfile | |
| rm $swapfile | |
| fi | |
| # Create a swap file of the desired size | |
| echo "Creating a $size swap file at $swapfile." | |
| fallocate -l $size $swapfile | |
| # Secure swap file by setting proper permissions | |
| chmod 600 $swapfile | |
| # Make the file usable as swap | |
| mkswap $swapfile | |
| # Activate the swap file | |
| swapon $swapfile | |
| # Backup the fstab file before modifying | |
| cp /etc/fstab /etc/fstab.backup | |
| # Add swap entry to /etc/fstab to make it permanent | |
| echo "$swapfile none swap sw 0 0" | tee -a /etc/fstab | |
| echo "Swap file created and activated. New system swap configuration:" | |
| swapon --show |
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