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

Calculate SHA256 cryptographic checksums.
More information: <https://www.gnu.org/software/coreutils/manual/html_node/sha2-utilities.html>.
Trick copyright: tl;dr; <https://github.com/tldr-pages/tldr>

sha256sum --check {{path/to/file.sha256}}

click the source code to copy install sha256sum on any operating system with command-not-found.com