The big problem is so many different versions between operating systems. Everyone wants to fiddle with code. E.g. OpenSSL on OpenBSD does have a man page. But

The big problem is so many different versions between operating systems. Everyone wants to fiddle with code. E.g. OpenSSL on OpenBSD does have a man page. But unfortunately no --help, at least on my older version. Also, on OpenBSD his example of generating an RSA key creates one with a 2048 bit modulus.