kdasouth.blogg.se - Windows compare two directories

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.

Consider the following before you use /NDL. The /NDL option is a handy way to suppress the inclusion of every folder checked (regardless of whether it contains differences) in the log, but there because of the way it works it is not a good idea in all circumstances. log+: reconcile.txt (Optional variant) Write log to reconcile.txt (Append if exists) Usage Notes and Warnings Regarding the /NDL Option log:reconcile.txt Write log to reconcile.txt (Recreate if exists) fp Include the full path of files in log (only necessary if you omit /ndl) l Don’t modify or copy files, log differences only e Recurse through sub-directories (including empty ones) ROBOCOPY “\\FileShare\SourceFolder” “\\FileShare\ComparisonFolder” /e /l /ns /njs /njh /ndl /fp /log:reconcile.txt Explanation of the command switches used above:

So here’s the command to perform a basic comparison of two folders and write a log file listing the differences. It has a ton of great features such as multi-threaded file copying, selectively copying changed files, and resumable copies that make it a must especially for big file copy jobs over flaky network connections. It is a supercharged version of XCopy that has been included with Windows since Vista.

If you are not familiar with RoboCopy, and you do a lot of mass copying of files, you need to stop what you are doing and learn about it pronto. Necessity mothered some invention and I found an inventive way to use a combination of command switches on RoboCopy to perform the comparison. 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. In most cases where I need to compare two folders recursively on a Windows system I use my go-to tool Beyond Compare.