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what to see what cpio would do without writing
Posted on 2012-12-24
I have two similar directories and I want to compare them to see what would be copied.
Normall I would cd to a dir and then just run the command:
find . -print | cpio -pdvm /foo/bar
but I cannot recall and worse find in the man to set cpio to read-only -- meaning just show me what it would have done. My memory tells me that I used to be able to do this. But I might have dreamt it since I cannot recall the last time I actually used that option.
The OS today is OS X 10.8.2
Normall I would cd to a dir and then just run the command:
find . -print | cpio -pdvm /foo/bar
but I cannot recall and worse find in the man to set cpio to read-only -- meaning just show me what it would have done. My memory tells me that I used to be able to do this. But I might have dreamt it since I cannot recall the last time I actually used that option.
The OS today is OS X 10.8.2
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3 Comments
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I do not believe cpio has a no-action mode.
You might be thinking of diff
Diff -BruN directory_origin directory_destination
The output will be a what changes need to be made to the origin directory contents to make it identical to the destination one.
Files should be regular files.
If you run the cpio you included, you will output the list of files that are copied.
You might be thinking of diff
Diff -BruN directory_origin directory_destination
The output will be a what changes need to be made to the origin directory contents to make it identical to the destination one.
Files should be regular files.
If you run the cpio you included, you will output the list of files that are copied.
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