Solved

md5sum check using powershell v 1.0

Posted on 2016-10-01
4
85 Views
Last Modified: 2016-10-01
Hi experts,
could you advise how to check md5sum check on a file using Microsoft powershell v1.0

Thanks in advance
0
Comment
Question by:enthuguy
  • 2
4 Comments
 
LVL 17

Accepted Solution

by:
Learnctx earned 500 total points
ID: 41825055
This is the function Microsoft created with later versions of PowerShell (the Get-FileHash function). I've modified it to work with PowerShell v1.

Function Get-FileHash
{
	[CmdletBinding(DefaultParameterSetName = "Path")]
	param(
		[System.String[]]
		$Path,

		[Alias("PSPath")]
		[System.String[]]
		$LiteralPath,

		[System.String]
		$Algorithm="SHA256"
	)
	
	# Construct the strongly-typed crypto object
	$hasher = [System.Security.Cryptography.HashAlgorithm]::Create($Algorithm)
	
	$pathsToProcess = @()
	
	if($PSCmdlet.ParameterSetName  -eq "LiteralPath")
	{
		$pathsToProcess += Resolve-Path -LiteralPath $LiteralPath
	}
	else
	{
		$pathsToProcess += Resolve-Path $Path
	}
	
	foreach($filePath in $pathsToProcess)
	{
		if(Test-Path -LiteralPath $filePath -PathType Container)
		{
			continue
		}
		
		try
		{
			# Read the file specified in $FilePath as a Byte array
			[system.io.stream]$stream = [system.io.file]::OpenRead($FilePath)

			# Compute file-hash using the crypto object
			[Byte[]] $computedHash = $hasher.ComputeHash($stream)
		}
		catch [Exception]
		{
			$errorMessage = [Microsoft.PowerShell.Commands.UtilityResources]::FileReadError -f $FilePath, $_
			Write-Error -Message $errorMessage -Category ReadError -ErrorId "FileReadError" -TargetObject $FilePath
			return
		}
		finally
		{
			if($stream)
			{
				$stream.Close()
			}
		}
		
		# Convert to hex-encoded string
		[string] $hash = [BitConverter]::ToString($computedHash) -replace '-',''

		$retVal = [PSCustomObject] @{
			Algorithm = $Algorithm.ToUpperInvariant()
			Hash = $hash
			Path = $filePath
		}
		$retVal.psobject.TypeNames.Insert(0, "Microsoft.Powershell.Utility.FileHash")

		$retVal
	}
}

Open in new window


Calling it is simple:

Get-FileHash -Path "C:\Temp\ExampleFile.txt" -Algorithm MD5

Open in new window


It will do the following file hashes.

SHA1
SHA256
SHA384
SHA512
MACTripleDES
MD5
RIPEMD160
1
 
LVL 93

Expert Comment

by:John Hurst
ID: 41825058
DigestIt 2004 works for MD5 and SHA1 on everything up to Windows 10. You do not really to code something unless you wish to.

http://www.colonywest.us/digestit/
1
 

Author Closing Comment

by:enthuguy
ID: 41825062
Thanks very much, that perfectly worked for me

could you suggest me how to check md5 value on two files. (between left file and right file) and get true or false please?

Is there  a function which could help me

thanks again
0
 

Author Comment

by:enthuguy
ID: 41825066
0

Featured Post

Master Your Team's Linux and Cloud Stack!

The average business loses $13.5M per year to ineffective training (per 1,000 employees). Keep ahead of the competition and combine in-person quality with online cost and flexibility by training with Linux Academy.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Learn to move / copy / export exchange contacts to iPhone without using any software. Also see the issues in configuration of exchange with iPhone to migrate contacts.
Read this checklist to learn more about the 15 things you should never include in an email signature.
To efficiently enable the rotation of USB drives for backups, storage pools need to be created. This way no matter which USB drive is installed, the backups will successfully write without any administrative intervention. Multiple USB devices need t…
This tutorial will show how to configure a single USB drive with a separate folder for each day of the week. This will allow each of the backups to be kept separate preventing the previous day’s backup from being overwritten. The USB drive must be s…

856 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question