How do I convert my existing zip files to 7z with 7-zip comand line?

Question

I'd like to convert a couple thousand zip files to 7z, with maximum compression and multithreading enabled.

Also in another place. Like c:\temp\file.zip to f:\converted\file.7z

score 3 · Answer 1 · edited Jan 25 '17 at 17:04

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You can use arepack (included in atool command suite) to convert between archive formats. Combined with a little bash, it makes easy to convert a bunch of ZIP files to 7z:

for f in *.zip; do arepack $f $f.7z; done
rm *.zip

edited Jan 25 '17 at 17:04

Joel Purra

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answered Aug 11 '16 at 12:45

jesjimher

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You can use `--each`/`-e` to let `arepack` do the iteration for you: `arepack --each --format=7z *.zip` – Joel Purra Jan 25 '17 at 16:51
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@JoelPurra the `arepack`-only solution is best! Thanks – Matt Sephton Jun 21 '18 at 11:20

Grumpy ol' Bear · Answer 2 · 2011-07-18T20:19:36.313

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Nevermind, http://www.peazip.org/ does the job just fine!

Edit: But hell, it takes way too long....

edited Jul 18 '11 at 20:19

answered Jul 18 '11 at 19:51

Grumpy ol' Bear

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And it also can't handle *some* zips that contain filenames in "bad" encodings like cp1251 or koi8r or something like that. – Sergey Jul 15 '13 at 10:09

score 1 · Answer 3 · answered Jul 22 '13 at 17:49

I wrote a script in Python - https://raw.github.com/pashinin/scripts/master/zip27z.py You can run it with:

./zip27z.py your_archive.zip

and it will create your_archive.7z near it.

Or you can install it on your system with make install (if you see the repo)

And just call:

zip27z your_archive.zip

It needs unzip and 7za programs.

You can modify it as you wish for your needs (and send me a pull request)

How do I convert my existing zip files to 7z with 7-zip comand line?

3 Answers3