[Lubuntu] Sed substitution with partially duplicate results

[Phill Whiteside]

Hi John,

thanks for letting us all of the resolution, we all do things when tired :)
Whilst not a script kiddie, I was somewhat surprised at what was happening
- Most important thing? you got it sorted.

Regards,

Phill.

On 21 December 2012 02:16, John Hupp <lubuntu at prpcompany.com> wrote:

>  On 12/20/2012 8:13 PM, John Hupp wrote:
>
>
> On 12/20/2012 4:56 PM, Jonathan Marsden wrote:
>
> On 12/20/2012 07:23 AM, John Hupp wrote:
>
>
>  I also tried
>
>     sed -e 's/DEVICE$/DEVICE Lubuntu1:3551/'
>
> And that had no effect whatsoever.  The result was still "DEVICE
> Lubuntu1:3551 Lubuntu1:3551".
>
>  That makes no sense to me at all, if the file originally had a line
> containing only DEVICE (you did check that, right?).  But
>
>
>        sed -e 's/DEVICE.*$/DEVICE Lubuntu1:3551/'
>
>  might still be worth a shot.  Also, can you re-verify exactly what the
> file has in it *before* you do all this sed editing on it?  Is there a
> line containing only the word "DEVICE" ?
>
> Is there any chance something else is editing the DEVICE line, so you do
> not need to do so?  If you omit this edit (for DEVICE) but leave all the
> others in place, what does the final file look like?
>
> Jonathan
>
>
>
> Thanks for giving this a good look.  I can verify now that the script is
> doing its job.  Something else is overwriting the file again after that.
>
> Given the nature of the overwrite, I have to think that I must have set in
> place whatever is doing the damage.  Probably some earlier troubleshooting
> attempt which I did not record and have now forgotten.  If I can't remember
> then I suppose I'll have to look through every location where something can
> start from in an LTSP client bootup.
>
>
> OK, got it!
>
> In some bleary-eyed moment two weeks ago I inserted the script in
> /usr/share/ltsp/ltsp_config.d as well as in /usr/share/ltsp/init-ltsp.d.
> Apparently both locations launch startup scripts in the LTSP client
> environment only.  Undoubtedly they are designed for different functional
> groupings or for intentional sequencing of certain kinds of
> configurations.  But both launch locations serve effectively for modifying
> this particular configuration file (twice).
>
> A big thank-you to everyone who responded and prodded my mental processes.
>
>
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