Crc compare folders how to#
Crc compare folders trial#

You can delete the -n option to undergo the changes. s, -protect-args no space-splitting only wildcard special-chars

c, -checksum skip based on checksum, not mod-time & size O, -omit-dir-times omit directories from -times

Crc compare folders trial#

n, -dry-run perform a trial run with no changes made The same for dir2 #from the rsync -help : With the previous line, you will get files that are in dir1 and are different (or missing) in dir2. Maybe one option is to run rsync two times: rsync -rtOvcs -progress -n /dir1/ /dir2/ Or as a single command using process substitution: diff every file is listed in output then): git diff -no-index dir1/ dir2/ Then compare the result two files with diff: diff -u dir1.txt dir2.txt Use find to list all the files in the directory then calculate the md5 hash for each file and pipe it sorted by filename to a file: find /dir1/ -type f -exec md5sum + | sort -k 2 > dir2.txt

Public int GetHashCode(System.IO.FileInfo fi)Ĭreate a C# console application project, with using directives for the System.Linq and System.IO namespaces.A good way to do this comparison is to use find with md5sum, then a diff. reference identity, it is possible that two or more objects will produce the same Because equality as defined here is a simple value equality, not rules for IEqualit圜omparer, if Equals is true, then the hash codes must Return a hash that reflects the comparison criteria. Public bool Equals(System.IO.FileInfo f1, System.IO.FileInfo f2) of the files being compared and their length in bytes.Ĭlass FileCompare : 圜omparer This implementation defines a very simple comparison Keep the console window open in debug mode.Ĭonsole.WriteLine('Press any key to exit.') Select file).Except(list2, myFileCompare) Ĭonsole.WriteLine('The following files are in list1 but not list2:') For this example we only check one way. Find the set difference between the two folders. Var quer圜ommonFiles = list1.Intersect(list2, myFileCompare) Ĭonsole.WriteLine('The following files are in both folders:') Ĭonsole.WriteLine(v.FullName) //shows which items end up in result listĬonsole.WriteLine('There are no common files in the two folders.') The query executes immediately because it returns a bool.īool areIdentical = list1.SequenceEqual(list2, myFileCompare) Ĭonsole.WriteLine('the two folders are the same') Ĭonsole.WriteLine('The two folders are not the same') that is defined in the FileCompare class. identical file lists, based on the custom file comparer This query determines whether the two folders contain IEnumerable list2 = dir2.GetFiles('*.*', System.IO.SearchOption.AllDirectories) įileCompare myFileCompare = new FileCompare() IEnumerable list1 = dir1.GetFiles('*.*', System.IO.SearchOption.AllDirectories) System.IO.DirectoryInfo dir2 = new System.IO.DirectoryInfo(pathB) String pathA = pathB = dir1 = new System.IO.DirectoryInfo(pathA) on a local drive and change these file paths. Create two identical or different temporary folders In a real-world scenario, you should modify this comparer to perform a more rigorous equality check. It just uses the name and length in bytes of each file to determine whether the contents of each folder are identical or not. The class is not intended for use in real-world scenarios.

Crc compare folders how to#

The FileComparer class shown here demonstrates how to use a custom comparer class together with the Standard Query Operators. The techniques shown here can be adapted to compare sequences of objects of any type.