> but then I remembered that bash has built-in tcp support! You have to be careful making that assumption anymore, though; the version of bash that's included

> but then I remembered that bash has built-in tcp support! You have to be careful making that assumption anymore, though; the version of bash that's included with Debian (and downstream variants, e.g. Ubuntu) has /dev/tcp and /dev/udp support disabled. So it's not something you can count on having available in any random environment you log into. I disagree with Debian's decision to disable it, but they seem pretty firmly set on it -- people have been arguing with them to reverse it for the better part of a decade, to no avail, so I doubt it's going to change. It's a declining minority of users who probably care. But you could do some neat 'party tricks' with it.