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With SyncToy on Windows, I can preview what it will do to my files before commiting the changes. Is it possible to do the same with rsync or something similar?

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up vote 6 down vote accepted

Use this command line option:

-n, --dry-run               perform a trial run with no changes made
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I guess I cant do that same with a GUI tool? like grsync? – Jiew Meng May 26 '11 at 14:27
oh to do it in grsync just add -n in the Additional Options Tab > Textarea – Jiew Meng May 28 '11 at 2:59

There is a tool called unison that builds on rsync. It provides two-way synchronization with the ability to track deletes. Check your repos or find source/binaries below:

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unison do not builds on rsync, only use a transfer protocol that is in part derived from that of rsync. – enzotib May 22 '11 at 7:29
Well, we are both partly right. Unison uses a protocol similar to rsync: "It is careful with network bandwidth, and runs well over slow links such as PPP connections. Transfers of small updates to large files are optimized using a compression protocol similar to rsync." Unison uses the same rsync algorithm for transfers:… – os2firefox Nov 19 '11 at 22:12

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