"Tweaked": A Tweaked file is defined to be one that exists in both the source and destination, with identical size and timestamp, but different attribute settings. An "extra" file is present in destination but not source; excluding extras will prevent any deletions from the destination..
Also know, what does robocopy extra file mean?
Extra files simply mean there are files in the destination that are not in the source. If you'd use /mir it would delete the extra files (not what you want!). You can also use the move command, but I guess robocopy is a bit safer /more stable.
Likewise, what's the difference between Xcopy and Robocopy? The most important difference is that robocopy will (usually) retry when an error occurs, while xcopy will not. In most cases, that makes robocopy far more suitable for use in a script.
Furthermore, what does modified mean in Robocopy log?
When Robocopy comes across a file with the Archive attribute set, it will systematically display the file as "Modified" in its logs and count the filesize toward the total amount of data copied to destination (Copied column). Next, make sure the Archive bit is set on that file using the attrib +a <filename> command.
Does Robocopy delete?
By default, robocopy doesn't copy files if they are the same size at source and destination, so if you use /MIR switch, robocopy will only remove file at destination, if they not exist at source anymore, but will also copy new and modified files, if any at source folder.
Related Question Answers
Is robocopy faster than file explorer?
Windows 7 comes with a new version of the robocopy command that is able to copy files much faster then the normal copy command or copy function of the file explorer by using several simultanious threads. So if you plan to copy a large number of files, e.g. to make a backup, use the robocopy command.Is robocopy faster than XCopy?
0.00 MB/Sec) and the maximum Disk Transfer Rate is better for Robocopy (312.22 MB/Sec vs. 283.57 MB/Sec). The average Disk Read Transfer is better for XCopy (76.15 MB/Sec vs. 75.28 MB/Sec), the minimum Disk Read Transfer is better for Robocopy (4.74 MB/Sec vs.Is robocopy faster?
If you want to copy a lot of files faster and more reliably, you need a better solution, such as Robocopy. Robocopy (Robust File Copy) is a command-line tool built into Windows 10, but it's been around for years, and it's a powerful and flexible tool to migrate files extremely fast.What is robocopy command?
Robocopy, or "Robust File Copy", is a command-line directory and/or file replication command for Microsoft Windows. Robocopy functionally replaces Xcopy, with more options.Is there a GUI for robocopy?
Add a Graphical User Interface (GUI) to the Microsoft Robocopy Command Line Tool. Robocopy, or “Robust File Copy,” is a command line directory replication tool from Microsoft. It is available as part of Windows 7 and Vista as a standard feature, and was available as part of the Windows Server 2003 Resource Kit.Is robocopy free?
Robocopy. Robocopy is a free file copy tool that is included with the Microsoft Windows operating system.Can robocopy copy files in use?
1 Answer. According to Wikipedia: Robocopy does not copy open files. Even Robocopy's Backup mode will not touch those files.Does robocopy copy hidden files?
Using robocopy command we can also change attributes(system, hidden, readonly) of the copied files. For example to copy all files from one directory to another directory and also set hidden attribute for all the files you can trigger 'Robocopy' with the below syntax.What is robocopy Mir?
/MIR is an option to ROBOCOPY where you mirror a directory tree with all the subfolders including the empty directories and you purge files and folders on the destination server that no longer exists in source.Does Robocopy overwrite existing files?
Robocopy, do not overwrite existing files, but copy the changed / new ones. Is it possible to mirror the two directories without overwritting the files in destination directory with new/changed/deleted files.What does the archive attribute mean in Windows?
archive attribute. A file classification that indicates whether the file has been updated since the last backup. A bit is set in the file directory to indicate the archive status. When a file is created or saved, the bit is turned on. When it is backed up, the bit is turned off.Why is Robocopy better than just copy?
Robocopy has some advantages over the standard copy-paste, it depends what you want it for. Advantages: multiple threads, thus copies faster and more effectively uses your bandwidth. you can set it to verify the copy job, make sure no errors during process.How many times will Robocopy Retry?
Why does robocopy retries 1000000 times? I get a couple of legacy bat scripts used for files synchronization. They use robocopy. According to the documentation, by default, there's a retry mechanism : one million retries, 30 seconds between retries.What protocol does Xcopy use?
What is Xcopy deployment? Xcopy deployment describes deployment in ASP.NET where you use the drag-and-drop feature in Microsoft Windows Explorer, File Transfer Protocol (FTP), or the DOS Xcopy command to copy files from one location to another.Will Robocopy overwrite?
In my case, robocopy won't overwrite a file, but with this option, it will. Robocopy will be able to overwrite files unless you tell it not to (using one of the /X* switches). A locked file could hang it, but actually Robocopy will retry, with defaults that means it can take a long time retrying a file.Is robocopy multithreaded?
One particular feature that makes Robocopy so special (and often overlooked) is its multi-threaded feature that allows you to copy multiple files at the same time. Instead of one file at a time using the copy feature built into File Explorer.What is Xcopy command?
The xcopy command is a Command Prompt command used to copy one or more files or folders from one location to another location. The xcopy command, with its many options and ability to copy entire directories, is similar to, but much more powerful than, the copy command.What is robocopy backup?
Backup mode only allows Robocopy to back up and restore all files, regardless of their own individual permissions (NTFS ACLs) on those files.Does the Xcopy command require a destination be provided?
Answer: The XCOPY command does require a destination to be provided. 
