If you want to see what files are added or deleted in a git object, try the --compact-summary option (try it in git-diff or git-show).
I've started using it to help identify commits I might want to rebase or cherry pick from a task branch.
You can use ... to specify a range of commits in git. So if you want to see what file(s) are changed over several commits, you could do it like this: git show --compact-summary aecc...4490 (where aecc is the latest and 4490 is the earliest commit).
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