![]() ![]() BC was having a lot of trouble and choked on many of my comparisons. However, today I was doing a reconciliation as part of a very large file migration project that required comparing two folders that each contained hundreds of millions of files spread across thousands of sub-folders. It is an excellent utility, and one that I think should be among the first utilities any developer should install on a new machine. Note that all files and folders are compared with or without using /ndl but what is logged is what changes.In most cases where I need to compare two folders recursively on a Windows system I use my go-to tool Beyond Compare. Folders that exist only on the destination are not logged at all regardless of contents. ![]() Folders that exist only on source or destination are not logged unless at least one mismatched file is present or a source file is missing on destination.The article actually suggests that you also use the /ndl switch to keep the size of the logfile down HOWEVER it warns that when the /ndl switch is active. ![]() ROBOCOPY “\FileShare\SourceFolder” “\FileShare\ComparisonFolder” /e /l /ns /njs /njh /fp /log:reconcile.txt It works with both local folders and network fileshares. This uses Microsoft's RoboCopy utility which is included in Windows Vista and up. ![]() I had a similar problem and ran across this article on How to diff two folders from a Windows command prompt. Its screeshot might be included in another answer. In the main list, each line can be evaluated individually:Ĭtrl+ F3 - run line-by-line compare tool (including editor). Notice that in my demo image, in left pane there is a ZIP archive. Synchronize button starts sync based on selections made in this column. Middle column of main list – sync of each file can be individually customized. toggle buttons to show/hide categories of items Ignore date - compare files only by name and size (an by content, if checked) enabled = left side is source, right side is target so file deletions on right side can be generated (see rows with red X on demo image)īy content - also compare files by content (byte-by-byte).disabled = left and right side are equal.I'm using it to compare/sync projects with 100,000 files in tree of 8,000 directories. I recommend Total commander, it has special subtree comparison tool in menu Commands > Synchronize Dirs.: ![]()
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