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Re: st: about vs. verinst


From   Alan Riley <ariley@stata.com>
To   statalist@hsphsun2.harvard.edu
Subject   Re: st: about vs. verinst
Date   Fri, 28 Sep 2007 17:03:42 -0500

Giovanni Vecchi <giovanni.vecchi@uniroma2.it> asked whether -verinst-
is still a valid Stata command:
> with the advent of Stata 10, the commands <about> and <verinst>
> produce the same output. Exactly the same. This does not make sense to
> me. 
> 
> While <about> is still documented in the reference manual, <verisnt>
> is not. Nor is there an entry for <verinst> in the on-line help.
> 
> I'm tempted to conclude that <verinst> has become an out-of-date
> command. Can anyone confirm it?
> 
> I'm running Stata/MP, duly updated.


-verinst- is no longer an officially-documented command in Stata 10.

Many years ago, on old DOS computers, people would sometimes install
Stata in such a way that Stata could not find its ado-files.  We
created a simple command implemented as an ado-file named -verinst-
which people could try to execute to see if Stata could find their
ado-files.

If Stata could find -verinst- and execute it, obviously Stata could
find its ado-files.  If the command was not found, it meant Stata
could not find its ado-files and troubleshooting was necessary.

In modern versions of Stata, the installation routines install
Stata in such a way that we no longer hear about Stata not being
able to find its official ado-files.  Thus, we deemed -verinst- to
no longer be necessary and made it undocumented.  We left around
a simple ado-file for -verinst- so that we wouldn't break anything
in case any users had a call to -verinst- in a do-file.


--Alan
(ariley@stata.com)

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