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i have a list of zip files, which each zip file in it has also some other zip files, and so on. I need to extract them all, with an ubuntu shell command, and get only the files with the extension *.pdf, into a new empty directory.

This is where i managed to come, i have tried unzip -l "*.zip"

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From How do I recusively unzip nested ZIP files? comes this one-liner :

while [ "`find . -type f -name '*.zip' | wc -l`" -gt 0 ]; do find -type f -name "*.zip" -exec unzip -- '{}' \; -exec rm -- '{}' \;; done

This removes all zip files that were done in order to avoid infinite loops. If you want to conserve these files, take first a backup.

  • but how do i only keep files with the extension .pdf? – vipoxou Oct 12 '18 at 11:10
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    The above extracts all files. To extract only zip and pdf replace the command -exec unzip -- '{}' by the two commands -exec unzip -- '{}' "*.zip" \; -exec unzip -- '{}' "*.pdf.` – harrymc Oct 12 '18 at 13:52

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