> On those echo that support options, there's generally no support of a -- to mark the end of options (zsh and possibly others support - for that though), so fo

> On those echo that support options, there's generally no support of a -- to mark the end of options (zsh and possibly others support - for that though), so for instance, it's difficult to output "-n" in many shells. It's good to know (while the key takeaway lesson is "use printf"): # bash $ echo -n $ echo -- -n -- -n $ echo - -n - -n # zsh $ echo -n $ echo -- -n -- -n $ echo - -n -n