The HOST command is used to look up information in the host table about a
particular host name or host number.  This information includes the official
name of the host if the name is a nickname, all host numbers known for that
host, whether the host is a user or a server, the host machine and the host
operating system.

To use HOST, type HOST followed the host name (or any abbreviation) you want to
look for, or the host number, and return.  The program will print all hosts (and
nicknames) which match the input specification.  A null specification will type
out the entire host table, but only if you are logged in.  For example:

	.HOST MIT-MC		(describe MIT-MC)
	.HOST CMU		(describe all CMU sites)
	.HOST 36.40.0.194	(describe Internet host 36.40.0.194)
	.HOST 50#302		(describe SU Ethernet host 50#302)
	.HOST			(print out the host table)

Note that even non-unique abbreviations are accepted.  For example "SU" will
print out ALL of the Stanford University hosts.  This is different from TELNET,
etc., which only accept abbreviations which are unique to a single host.