recursion - Command Line For Loop returns path that is missing last subdirectory -

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i'm trying use loop recursively extract zip files in folder multiple levels , zips within zips. when run error message because last sub directory blank looks c:\users\johnsmith\desktop\testing\\ , says cannot create output directory. had thought had had working earlier guess missed something. , help!

here i'm running:

for /r "c:\users\johnsmith\desktop\testing\" %i in (*.zip) (7z x "%i" -aou -o\"%~dpi\" && del \"%~fi\")

i guess there \" survivals of escaping sequences in command if call within program. no such need (and harmful) in pure cmd.

as per 7-zip command line version user's guide use -o"%~dpi" (remove backslashes); same in del "%~fi" follows

for /r "c:\users\johnsmith\desktop\testing\" %i in (*.zip) (7z x "%i" -aou -o"%~dpi" && del "%~fi")

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