Modded script to keep Ubuntu packages and snaps updated.

Used Copilot to update my Ubuntu maintenance script. I did tweak it slightly though since I am running LTS and don't want all packages to be updated to the latest version.

#!/bin/bash

# Function to handle errors
function handle_error {
  echo "$1 Exiting."
  exit 1
}

# Function to update apt packages
function update_apt {
  echo "Updating apt package lists..."
  sudo apt update || handle_error "Error updating apt package lists."
 
  echo "Upgrading apt packages..."
  sudo apt upgrade -y || handle_error "Error upgrading apt packages."
 
  echo "Cleaning up apt packages..."
  sudo apt autoremove -y && sudo apt clean || handle_error "Error cleaning up apt packages."
}

# Function to update snap packages
function refresh_snaps {
  echo "Updating Snap packages..."
  sudo snap refresh
  if [[ $? -ne 0 ]]; then
    echo "Refresh failed. Attempting to kill running Snap processes..."
    sudo pkill -f snap
    sudo snap refresh || handle_error "Error updating Snap packages after killing processes."
  else
    echo "Snap packages updated successfully."
  fi
}

# Function to update Maldet database and run a scan
function run_maldet {
  echo "Updating Maldet database..."
  sudo maldet -u || handle_error "Error updating Maldet database."
 
  echo "Starting Maldet scan of /home (recent changes, quiet mode)..."
  sudo maldet -r -q /home || handle_error "Error running Maldet scan."
 
  SCAN_LOG=$(sudo maldet --report list | tail -n 1 | awk '{print $NF}')
  if [[ -n "$SCAN_LOG" ]]; then
    echo "Maldet scan log located at: $SCAN_LOG"
  else
    echo "Could not retrieve Maldet scan log location."
  fi
}

# Main script execution
update_apt
refresh_snaps
run_maldet

echo "All done!"