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You need to create a Docker volume named myvol and demonstrate cross-platform consistency - that data written from one container is readable by a different container using a different base image.

You have created a commit locally that contains incorrect changes and you want to completely erase it from history.

Before performing a system-wide database schema migration, you've been asked to ensure that all existing .db files are safely backed up. These files may be scattered across multiple subdirectories, and simply renaming them isn't enough. You must create backup copies with the .db.bak extension, preserving directory structure and permissions.