Lastly, piping the download of the original ZIP directly to 7z e wouldn't be possible because ZIP files can't be stream-decompressed: they often have an index at the end of the file, thus requiring the whole file first before starting to decompress.įor this, we can quickly create a RAM disk X:\ with OSFMount: osfmount. You cannot really pipe multiple files around, because its not just data. This operation is a bad fit for pipes or the like. With multiple files, it would more complex, as noted by in his comment: ![]() Note that there is only 1 match for *.mbox in my original archive, so there is only one file to be decompressed / compressed. It uses -so and -si stdout/stdin flags of 7z. re-create the new archive, providing the new password - if you want to remove / reset password simply omit it. ![]() The following command-line solution avoids temporary files for decompression/compression, and works on Windows. Consequently, the standard way to change password to existing archive, or to remove password (s) is to: extract the old archive, providing the needed current (old) password(s) - the password that will be replaced.
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