Recently found some clowny gist was the top result for 'google takeout multiple tgz', where it was using two bash scripts to extract all the tgz files and then merge them together. Don't do that. Use brace expansion, cat the TGZs, and extract:
$ cat takeout-20201023T123551Z-{001..011}.tgz | tar xzivf -
You don't even need to use brace expansion. Globbing will order the files numerically:
$ cat takeout-20201023T123551Z-*.tgz | tar xzivf -
tar has been around forever, they didn't design it to need custom scripts to deal with multipart archives. Since it's extracting the combined archive, there's no 'mess of partial directories' to be merged. It just works, as intended.
An additional tip, courtesy of Dmitriy Otstavnov (@bvc3at): if you have pv available, you can track the progress of the extraction:
> pv takeout-* | tar xzif -
190GiB 2:37:54 [18.9MiB/s] [==============> ] 30% ETA 5:03:49
source & further reading
gist.github.com — original article
agent-proxy — a zero-dep proxy that shows the bloat in Claude Code's requests (ranked tool table + full readable Markdown of every request)
PowerShell profile and test suite
A plan-of-plans for a production-grade end-to-end e-commerce website.