> One reason is that disparate impls of POSIX utils don't behave as similarly as one would hope. It's easy to cross the line from using flags that are guarantee

> One reason is that disparate impls of POSIX utils don't behave as similarly as one would hope. It's easy to cross the line from using flags that are guaranteed to be available to using flags and behaviors only available on your machine. Certainly not, it's as easy as looking up the specification for anything else; what is and isn't POSIX is well documented. > everybody who saw it had a visceral negative reaction This is a reaction rooted in emotion, not reason.