# [OS X TeX] Re: Save date-time, not Print date

Victor Ivrii vivrii at gmail.com
Sat Jan 6 14:58:48 EST 2007

```On 1/6/07, Alain Schremmer <Schremmer.Alain at gmail.com> wrote:
> Victor Ivrii wrote:
>

> >
> > I am not sure why one needs to know the date when foo.tex was modified
> > (and actually this is given by either UNIX ls -l or just Mac OS info)
> > unless it is a milestone. But if it is a milestone (say draft-3) I
> > would save it under the name foo-draft-3_2007_01_06.tex and never edit
> > again.
>
> Surely you missed
>
> B. Towards the begining of the thread, Kock wrote: "In my opinion, the
> \date command in latex is not particularly useful: often it is quite
> uninteresting and confusing to know when the dvi or pdf file was
> compiled -- the interesting bit of info really is the time the source
> file was last modified. For example if you find an old tex file on your
> hard disc and compile it, it will get today's date stamp, even though
> the file was last modified several years ago" which is exactly the issue
> as far as I am concerned.
>

As an author I am dealing with .tex file, not with pdf or .ps and
unless I run on foo.tex touch command I can see from ls -l foo.tex (or
from MacOS info) when .tex file was modified. The reader deals with
.pdf and it is IMHO my (author) discretion which date should be on it.
I can put \today or fix the date ...

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>

--
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Victor Ivrii, Department of Mathematics, University of Toronto
http://www.math.toronto.edu/ivrii