# This script is used to verify the authenticity of a downloaded LLaMA model file.
# It uses the sha256sum command to generate a checksum for the file and then uses awk to extract the first column, which contains the checksum value.

# The first step is to navigate to the directory where the LLaMA model file is located.

# Next, we use the sha256sum command to generate a checksum for the file.
sha256sum llaama-model.bin | awk '{print $1}'

# The output of this command will be a string of characters, which is the checksum value for the file.

# Finally, we use awk to extract the first column of the output, which contains the checksum value.
# This value can then be compared to the original checksum provided by the creators of the LLaMA model to verify its authenticity.

#!/bin/bash # This line specifies the interpreter to be used for executing the script

# This script outputs the first 8 characters of the SHA-256 hash for a LLaMA model file

# Store the SHA-256 hash in a variable
hash=$(sha256sum LLaMA_model_file | cut -c 1-8) # The output of the sha256sum command is piped to the cut command to extract the first 8 characters, which are then stored in the variable "hash"

# Print the hash value
echo $hash # The variable "hash" is printed to the console

# Expected output: e9a734d0 # This is the expected output as mentioned in the context before the script

# This script uses the Get-FileHash cmdlet to retrieve the hash value of a file and then selects the first hash string from the result.

# The Get-FileHash cmdlet is used to calculate the hash value of a file. It takes in the path of the file as a parameter.

# The Select-Object cmdlet is used to select specific properties from the result of the previous cmdlet. In this case, we are selecting the HashString property.

# The -First parameter is used to specify the number of results to return. In this case, we are only interested in the first hash string.

Get-FileHash -Path llaama-model.bin | Select-Object HashString -First 1

# This script outputs the first 32 characters of the SHA-256 hash for a LLaMA model file.

# Import the System.Security.Cryptography namespace to access the SHA256Managed class for hashing.
using namespace System.Security.Cryptography

# Define a function to calculate the SHA-256 hash of a given file.
function Get-FileHash([string]$filePath) {
    # Create a new instance of the SHA256Managed class.
    $sha256 = [SHA256Managed]::Create()

    # Open the file at the given path and read its contents as a byte array.
    $fileBytes = [System.IO.File]::ReadAllBytes($filePath)

    # Compute the hash of the file's contents and convert it to a hexadecimal string.
    $hash = [BitConverter]::ToString($sha256.ComputeHash($fileBytes))

    # Return the first 32 characters of the hash.
    return $hash.Substring(0, 32)
}

# Define the path to the LLaMA model file.
$filePath = "C:\Users\Username\Documents\LLaMA\model.llama"

# Call the Get-FileHash function and store the result in a variable.
$hash = Get-FileHash $filePath

# Output the first 32 characters of the hash.
Write-Host $hash