Safe Mode
Specifying the command line option "-n" or setting the configuration variable NoAction will cause SyncDat to scan the directories without actually making any changes.
This is useful, and strongly recommended, if you have not previously synchronized the two directories, if you are unsure of their integrity, or prior to a Peer Mode synchronization.
When combined with "-v" or Verbose, SyncDat will list each action that it would have performed. Otherwise it will report only errors and a summary of proposed changes.