Hello all, > Looking at POSIX, I see that `-d '\0'` must be supported, `-d ""` is > unspecified
I don't think so, -d "" is just a list with an empty string. So -d '\0' is equivalent to -d '', '\0' is here to let the user express an empty string in a list, which wouldn't be possible otherwise (like how would one specify empty string in a list like 'ab<empty-string>cd'). > and `-d""` is invalid, since paste(1) must follow the > utility syntax guidelines (guideline 7). Not sure what you mean there, -d"" is the concatenation of -d and '', which is standard. Did you quote the correct guideline? “Guideline 7: Option-arguments should not be optional.” here there's an option-argument, that's an empty string.
