Re: [ program

[Alfred M\. Szmidt]

   I was wondering if that [ program is supposed to be there, or if
   it's a typo.  If I run info [ I get the info page for test, so I
   wasn't certain if they were related.

They are the same, [ is for systems that don't have [ builtin into the
shell.  Consider the following shell expresion:

if [ -z $foo ]; then foo; else bar; fi

You could also write the above using `test', test -z $foo.

Cheers.