PowerShell Script to compare the hash values of multiple files

You can use the below PowerShell script to compare the hash values of multiple pairs of files.

Begin by giving each path for each file in your data set a unique name.

$file1 = "C:\foofolder\set1\analysis.xlsx”

$file2 = "C:\foofolder\set2\analysis.xlsx"

$file3 = "C:\foofolder\set1\Memo.docx”

$file4 = "C:\foofolder\set2\Memo.docx"

$file5 = "C:\foofolder\set1\Show1.pptx”

$file6 = "C:\foofolder\set2\Show1v2.pptx"

. . . then prepare lines comparing the hash of the first file to the second file:

if((Get-FileHash $file1).hash -ne (Get-FileHash $file2).hash)

. . . . you can parse through your data on an Excel spreadsheet like this:

. . . using a formula to number the files side by side. Copy the lines to a text editor and remove the resulting tabs, putting each line of script on a new line as necessary.

The script will give you a list of which files are same and which are different in the same order in which they are listed in the script.

$file1 = "C:\foofolder\set1\analysis.xlsx”

$file2 = "C:\foofolder\set2\analysis.xlsx"

$file3 = "C:\foofolder\set1\Memo.docx”

$file4 = "C:\foofolder\set2\Memo.docx"

$file5 = "C:\foofolder\set1\Show1.pptx”

$file6 = "C:\foofolder\set2\Show1v2.pptx"

if((Get-FileHash $file1).hash -ne (Get-FileHash $file2).hash)

{“files are different”}

Else {“Files are the same”}

if((Get-FileHash $file3).hash -ne (Get-FileHash $file4).hash)

{“files are different”}

Else {“Files are the same”}

if((Get-FileHash $file5).hash -ne (Get-FileHash $file6).hash)

{“files are different”}

Else {“Files are the same”}

See the post by Dr. Scripto here.