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Date:	Sun, 4 Aug 2002 14:09:38 PST7
From:	Harry Chris Motin <hmotin@attglobal.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Re: Your REXX script ...

Content Type: text/plain

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OK! Sorry, but I'm a little slow with the wording here, so you will have
to explain it a little better. I don't understand the words: "but use
PARMS for standard settings i.e. Drive, ..."

What are PARMS?

My intention in my new version was to use the SYSDRIVEMAP() function to
automatically get a listing of all the drives, or partitions, on your
system. Then, using this information, the script would construct a
temporary ASCII file, which is in fact a new REXX procedure. It would
construct it, using the LINEOUT or STREAM functions. The script would
call this new REXX procedure and temporarily hand over control to it.
The
temporary procedure would present you with a listing of your partitions
and ask you to select one for backing it up, or to type in the desired
backup path (source). You would select the desired partition, or type in
a desired backup path. Then the original script would again take over
and proceed with that information.

By the way, I would weed out from the SYSDRIVEMAP() result any partition
that is not FAT, HPFS or JSF. This means that CD drives would not be
included, even if they are CD-R or CD-RW drives. SYSDRIVEMAP() already
does not include floppy drives. Therefore, the final outcome would be a
listing of only the local and network hard drive partitions.

In the same fashion, the script would construct another temporary REXX
file and temporarily turn over control to that REXX procedure. Here you
would be selecting a partition as the target for receiving your backup
file, or you would type in a path you desired.

In the end the script would erase both temporary REXX files.

OK!

Steven, I agree that I can automate the size checking logic. But I think
that will have to wait until round two.

Is the above proposed way of handling the different partitions on
different systems acceptable to all? I need an answer from everyone.

HCM
______________________________________________________________________________

Steven Levine wrote:
>
> =====================================================
> If you are responding to someone asking for help who
> may not be a member of this list, be sure to use the
> REPLY TO ALL feature of your email program.
> =====================================================
>
> In <1028498966-0-Info@SYNass.NET>, on 08/04/02
> at 08:09 AM, "Info2SYNass.NET" said:
>
> >... just do the same as now but use PARMS for standard settings i.e.
> >Drives, Souces & Target !
>
> That's one option. Some sort of control file would be better. Your
> environment variable method could work, but is somewhat clumsy. The
> reason for a control file rather than command line arguments is that a
> long command lines are hard to read and hard to maintain and the command
> line is easy to overflow. That said, just defining the defaults at the
> start of the script along with instructions how to edit the site specific
> values would work too.
>
> I would expect the backup settings to change slowly over time, so an
> easily edited control file seems to be a good solution.
>
> >sensitive part of the script but I must adjust environment
> >settings accordingly
> >to my system and my needs once and only if my system environments changes
> >;-)
>
> Harry could have made the script somewhat more generic by using:
>
> SysDriveMap('C:", 'L')
>
> to locate the drives and by using a stem to store the backup settings for
> each drive.
>
> >The rest of your script works like now ;-)
>
> Another thing I would attempt to do is automate the avaiable size logic
> somewhat. This could be done by reading the log for the previous backup
> and extracting the uncompressed sizes. This can be used to calculate an
> average compression ratio. This along with the remaining space in the
> container and the backup size from SysDriveInfo() should be a pretty good
> estimator.
>
> Steven
>
> --
> ---------------------------------------------------------------------
> "Steven Levine" MR2/ICE 2.31a #10183 Warp4/FP15/14.085_W4
> www.scoug.com irc.webbnet.org #scoug (Wed 7pm PST)
> ---------------------------------------------------------------------
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