sha256sum

Calculate SHA256 cryptographic checksums. More information: https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html.

• 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 sums and filenames and verify all files have matching checksums:
  sha256sum --check {{path/to/file.sha256}}
• Only show a message for missing files or when verification fails:
  sha256sum --check --quiet {{path/to/file.sha256}}
• Only show a message when verification fails, ignoring missing files:
  sha256sum --ignore-missing --check --quiet {{path/to/file.sha256}}