Bash - добавить ноль к одной цифре во время цикла

Вот сценарий, который делает это.

sudo apt-get install python-apt

и вы готовы к работе.

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

from __future__ import (absolute_import, division,
                        print_function, unicode_literals)
import apt
from apt.cache import Filter, FilteredCache

MB = 1024*1024

class InstalledFilter(Filter):
    def apply(self, pkg):
        return pkg.is_installed

def iter_base_deps(cache, package):
    deps = []
    version = package.installed
    for dep_type in ('Depends', 'PreDepends', 'Recommends'):
        deps.extend(version.get_dependencies(dep_type))
    for dep in deps:
        for base_dep in dep:
            if base_dep.name in cache:
                yield base_dep

def main():
    package_ref_count = {}
    results = []

    cache = FilteredCache(apt.Cache())
    cache.set_filter(InstalledFilter())
    for package in cache:
        for base_dep in iter_base_deps(cache, package):
            if base_dep.name in package_ref_count:
                package_ref_count[base_dep.name] += 1
            else:
                package_ref_count[base_dep.name] = 1

    for package in cache:
        base_deps_size = 0
        base_deps = []
        for base_dep in iter_base_deps(cache, package):
            if package_ref_count[base_dep.name] == 1:
                base_deps.append(base_dep)
                base_deps_size += cache[base_dep.name].installed.installed_size
        total_size = package.installed.installed_size + base_deps_size
        results.append((total_size, package, base_deps_size, base_deps))

    for total_size, package, base_deps_size, base_deps in sorted(results, reverse=True):
        if package.name in package_ref_count:
            continue
        if total_size < MB:
            break
        self_size = package.installed.installed_size
        base_dep_count = len(base_deps)
        print('{:.1f} MB  {}'.format(total_size/MB, package.name) + \
              (' with {} deps'.format(base_dep_count) if base_dep_count else ''))
        if base_dep_count:
            print('    {:.1f} MB  self'.format(self_size/MB))
            for base_dep in base_deps:
                size = cache[base_dep.name].installed.installed_size
                print('    {:.1f} MB  {}'.format(size/MB, base_dep.name))


if __name__ == '__main__':
    main()

Пример вывода: