re "s|echo \"\\\$|printf '%s\\\n' \"\$|g"•••Replace all cases where `echo` was given a variable as its first
argument, even on cases where we always know what the variable's content
look like.
bin/{uuid,gen-password}: Use /dev/urandom over /dev/random•••As Thomas Pornin eloquently put it[0]:
> use /dev/urandom and be happy; use /dev/random and be sorry
[0]: https://security.stackexchange.com/questions/3936/is-a-rand-from-dev-urandom-secure-for-a-login-key