https://github.com/koalaman/shellcheck/issues/3113
Fix typo
Add a note about grep being a placeholder; I've referenced this page for looping through pipes and files; years of my code uses this placeholder!!1
Updated SC2013 (markdown)
Fix previous edit (Populate mypipe)
Add a POSIX solution without a subshell
Use triple backticks rather than indenting for code.
Replaced "Contraindications" with "Exceptions".
Created SC2013 (markdown)