here are examples of how to obtain the SHA256 checksum of a file in different operating systems:

Linux/Unix

In Linux/Unix-based systems, you can use the sha256sum command to generate the SHA256 checksum of a file.

To generate the SHA256 checksum of a file in Linux/Unix, open a terminal window and navigate to the directory where the file is located. Then run the following command:

bash

sha256sum filename

macOS

On macOS, you can also use the shasum command to generate the SHA256 checksum of a file.

To generate the SHA256 checksum of a file in macOS, open a terminal window and navigate to the directory where the file is located. Then run the following command:

shasum -a 256 filename

Windows

In Windows, you can use the CertUtil command to generate the SHA256 checksum of a file.

To generate the SHA256 checksum of a file in Windows, open a Command Prompt window and navigate to the directory where the file is located. Then run the following command:

CertUtil -hashfile filename SHA256