https://martin-ueding.de/posts/thinkpad-uefi-suspend/

unused_boot_entries.py

#!/usr/bin/python3
# -*- coding: utf-8 -*-

# Copyright © 2016 Martin Ueding <mu@martin-ueding.de>

import argparse
import re
import subprocess

PATTERN = re.compile(r'Boot([0-9A-F]{4})\*?\s+([^\t]+)\s(\S+)')


def main():
    options = _parse_args()

    lines = subprocess.check_output(['efibootmgr', '-v']).decode().split('\n')

    entries = {}

    for line in lines:
        m = PATTERN.match(line)
        if m:
            number, kind, details = m.groups()

            if kind not in entries:
                entries[kind] = []

            entries[kind].append(number)

    if options.verbose:
        for kind, numbers in sorted(entries.items()):
            count = len(numbers)
            print('{}, ({} {})'.format(kind, len(numbers), 'entry' if count == 1 else 'entries'))
            print(sorted(numbers))
            print()

    if options.delete is not None:
        to_delete = []
        for name in options.delete:
            if name in entries:
                to_delete += entries[name]

        if len(to_delete) > 50:
            if options.verbose:
                print()
                print('The following ones will be deleted:')
                print(', '.join(sorted(to_delete)))

            for number in to_delete:
                print('Deleting {} …'.format(number))
                subprocess.check_call(['efibootmgr', '-b', number, '-B'])


def _parse_args():
    '''
    Parses the command line arguments.

    :return: Namespace with arguments.
    :rtype: Namespace
    '''
    parser = argparse.ArgumentParser(description='')
    parser.add_argument('--delete', nargs='*', default=['Fedora', 'kubuntu'])
    parser.add_argument('--verbose', action='store_true')
    options = parser.parse_args()

    return options


if __name__ == '__main__':
    main()