26 lines
1.1 KiB
Markdown
26 lines
1.1 KiB
Markdown
# zfs-diff-move
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Script to replicate moves reported by zfs diff. Note this is a
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potentially destructive operation if the `--clobber` option is provided.
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```
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USAGE: zfs-diff-move.sh [--clobber] dir zfs-dir zfsdataset@old-snap [[zfsdataset]@new-snap]
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```
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Uses [`zfs diff`](https://openzfs.github.io/openzfs-docs/man/master/8/zfs-diff.8.html)
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to find what files have been moved on the ZFS dataset `zfsdataset`
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since the snapshot `@old-snap` (until `@new-snap` or the present if
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not specified). `zfs-dir/` should be the mountpoint of `zfsdataset`
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or a subdirectory of it. All file moves like `zfs-dir/some/path` to
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`zfs-dir/another/name` will have the equivalent file move applied to the
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directory structure under `dir/`: `dir/some/path` to `dir/another/name`.
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**IMPORTANT:** Using the `--clobber` option can lead to data loss
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if `dir/another/name` already exists. Otherwise (or if the default
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`--no-clobber` is explicitly specified), moves that would overwrite will
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instead be skipped.
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`zfs-diff-move-small.sh` does the same thing but is written more tersely
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and handles fewer edge cases in order to squeeze into the text of a blog
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post.
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