function f_users {
  echo "[$SCRIPT_COUNT] Remove users"

  for user in games gnats irc list news sync uucp; do
    if id "$user" &>/dev/null; then
      pkill -u "$user"
      if userdel -r "$user" &>/dev/null; then
        echo "User $user deleted successfully."
      else
        echo "Failed to delete user $user."
      fi
    else
      echo "User $user does not exist."
    fi
  done

  ((SCRIPT_COUNT++))
}