sha256sum

all

Calculate SHA256 cryptographic checksums.

Options (1)

-c, --checkboolean

Read a file of SHA256 checksums and filenames and verify all files have matching checksums

Example: sha256sum {{[-c|--check]}} {{path/to/file.sha256}}

Calculate the SHA256 checksum for one or more files

sha256sum path/to/file1 path/to/file2 ...

Calculate and save the list of SHA256 checksums to a file

sha256sum path/to/file1 path/to/file2 ... > path/to/file.sha256

Calculate a SHA256 checksum from `stdin`

command | sha256sum

Read a file of SHA256 checksums and filenames and verify all files have matching checksums

sha256sum [-c|--check] path/to/file.sha256

Only show a message for missing files or when verification fails

sha256sum [-c|--check] --quiet path/to/file.sha256

Only show a message when verification fails, ignoring missing files

sha256sum --ignore-missing [-c|--check] --quiet path/to/file.sha256

Check a known SHA256 checksum of a file

echo known_sha256_checksum_of_the_file path/to/file | sha256sum [-c|--check]