All what exists in dir B and not in dir A will be copied from dir B to new or existing dir C

rsync -v -r --size-only --compare-dest=../A/ B/ C/
Assumed dir A, B, C are subdirs of the current dir Exact syntax of the command is: rsync -v -r --size-only --compare-dest=/path_to_A/A/ /path_to_B/B/ /path_to_C/C/ (do not omit end-slashes, since that would copy only the names and not the contents of subdirs of dir B to dir C) You can replace --size-only with --checksum for more thorough file differences validation Useful switch: -n, --dry-run perform a trial run with no changes made

9
By: knoppix5
2013-09-10 21:41:16

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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