/usr/ucb/u - (nf)

[scarton at inmet.UUCP]

#R:linus:-83100:inmet:10300012:000:339
inmet!scarton    Mar 27 16:56:00 1984

I believe that the `/usr/ucb/u' command is nothing more than a link
to the `w' command with a different name.  If you look at the source
to `w', it sets the variable firstchar to the first character of the
command name.  If firstchar == 'u', it then only prints the header
information displayed by `w'.  Two commands for the price of one.