Only show a message for files for which verification fails, ignoring missing files

Calculate SHA224 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>

sha224sum --ignore-missing --check --quiet {{path/to/file.sha224}}

click the source code to copy install sha224sum on any operating system with command-not-found.com