Command line utility to compare large folder hierarchies using CRC stamps for every file. Ideal for remote comparisons where the files are not at the same location.
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.gitignore CrcCheckCopy v1.1 Jun 29, 2018
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README.md v1.4, MacOs edition Jul 21, 2018

README.md

CrcCheckCopy: Compare a big number of files by using their CRC stamps

CheckCopy is a command line utility that lets you compare/verify a large number of files. It generates a single CRC-stamps file that contains the CRCs of each file. This small file can then be used to either check/compare another folder hierarchy, or be used as an integrity check of the same folder hierarchy.

More info at the CrcCheckCopy website

The comparison is completed in two steps.

Step1 (Source scanning): reads all files of the source folder and creates in the current working directory one CRC stamps file ("CRCstamps.txt").

Syntax:

CrcCheckCopy /scan <SourceFolder>

or using the short version of the switch

CrcCheckCopy /s <SourceFolder>

If the path contains spaces, then include the path in quotes, e.g.

CrcCheckCopy /scan "C:\folder with spaces"

Step2 (Verification): uses the CRC stamps file of Step1 to verify all the files at the destination folder.

Syntax:

CrcCheckCopy /verify <DestinationFolder>

or using the short version of the switch

CrcCheckCopy /v <DestinationFolder>

If the destination folder has additional files that do not exist in the source folder, then these files will not be checked nor be reported.

Operating system compatibility:

  • Windows XP and later, 32/64 bit

Version history