Calculate Sha256 Digest To File

Use OpenSSL to compute the SHA256 digest of a file and save it to a specified output file.

Terminal

openssl dgst -sha256 -binary -out <output_file> <input_file>

openssl dgst -sha256 -binary -out <output_file> <input_file>

#!/bin/bash

# Calculate Sha256 Digest To File
openssl dgst -sha256 -binary -out {{output_file}} {{input_file}}

import subprocess

# Calculate Sha256 Digest To File
# Make sure to replace <placeholders> with actual values
def run_command():
    cmd = [
        "openssl",
        "dgst",
        "-sha256",
        "-binary",
        "-out",
        "<output_file>",
        "<input_file>"
    ]
    
    try:
        print(f"Executing: {' '.join(cmd)}")
        subprocess.run(cmd, check=True)
    except subprocess.CalledProcessError as e:
        print(f"Error: {e}")
    except FileNotFoundError:
        print("Error: openssl not found. Please install it first.")

if __name__ == "__main__":
    run_command()

When To Use

Use this command to securely hash a file's contents for verification.

Command Builder

Tune the command before you copy it

Back to syntax

Generated Command

openssl dgst -sha256 -binary -out <output_file> <input_file>

Terminal Output

Expected runtime feedback

Simulated preview

Output

$ openssl dgst -sha256 -binary -out digest.bin input.txt

Command Breakdown

What each part is doing

openssl: Base Command; The executable that performs this operation. Here it runs Openssl before the shell applies any redirect operators.
<output_file>: Input Files; The file path or paths supplied to this command.
<input_file>: Input Files; The file path or paths supplied to this command.
-sha256: Command Option; Tool-specific option used by this command invocation.
-binary: Command Option; Tool-specific option used by this command invocation.
-out: Command Option; Tool-specific option used by this command invocation.

How To Run

Execution path

Step 1
Replace {{output_file}} with your desired output file name.
Step 2
Replace {{input_file}} with the file you want to hash.
Step 3
Run the command to generate the SHA256 digest.

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