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Re: Backup script OS 8.6

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Adrian Tuddenham <adrian@poppyrecords.invalid.invalid> wrote:
> Jolly Roger <jollyroger@pobox.com> wrote:
> 
>> On 2017-03-06, Adrian Tuddenham <adrian@poppyrecords.invalid.invalid> wrote:
>>> OS 8.6 on a beige G3.
>> 
>> Probably a good idea to cross/post this to comp.sys.mac.vintage. ; )
> 
> Thanks, I might try that.
> 
>>> I am looking for a way of mirroring one drive to another using a backup
>>> script once per day at shutdown.  I have tried several commercial
>>> programs but they all have disadvantages.
>> 
>> Back in the day, I always used Retrospect to do backups like that.
> 
> I have a copy somewhere but for some reason I gave up using it; can't
> remember why, but it might have been because of  the number of CDRs it
> used.  If that was the case, I might give it another try now I have
> duplicate HDs.
> 
> For ages I used Redux, but the number of files exceeded its memory
> system and it failed.  Then I used LaCie SilverKeeper- but that also had
> a file limit and several other intermittent problems that I never
> identified.
> 
>> You might try Folders Synchronizer. It's been around since System 7, and
>> they still have old versions available for download on the web site
>> (look for "Previous Versions" on this page):
>> 
>> <http://www.softobe.com/folderssynchronizer.html>
> 
> Thanks, I didn't know about that.
> 
>>> Is there an applescript command (or a downloadable script) that will
>>> copy from one disk to another only the files that have been modified
>>> since the last backup date, or is it a matter of writing a complex
>>> program to do it file by file and folder by folder?
>> 
>> I don't have any Macs or emulators running 8.6, but in Mac OS 9 there
>> is a "duplicate" command that will copy a specified file or folder to a
>> specified destination:
>> 
>> set source to ((the path to the desktop as string) & "Batch Stuff") as
>> alias
>> set destination to ((the path to the desktop as string) & "Test:") as
>> alias
>> 
>> tell application "Finder"
>> duplicate file source to file destination with replacing
>> end tell
> 
> I wonder how that differs from the Copy command?

Again I only have Mac OS 9 running at the moment; but in it, the "copy"
command copies stuff to the clipboard. And there is no corresponding paste
command. I'm betting 8.6 is similar.

>> The task of figuring out which files have been modified would be up to
>> you as well. That can be scripted as well, but unless you are familiar
>> with AppleScript, you're in for a learning curve.
> 
> I've written a few simple Applescripts, but have a lot re-learning to do
> on the infrequent occasions when I need another one.
>  
>> Here's how to get the modification date of a specified file, "source":
>> 
>> tell application "Finder"
>> set modDate to the modification date of (file source)
>> log modDate
>> end tell
> 
>> Again, this is in Mac OS 9.
> 
> I'll check your examples and see if they run in OS 8.6
> 
> Once again, thanks for your reply.

Welcome!

-- 
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JR

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Thread

Backup script OS 8.6 adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2017-03-06 12:34 +0000
  Re: Backup script OS 8.6 Jolly Roger <jollyroger@pobox.com> - 2017-03-06 15:43 +0000
    Re: Backup script OS 8.6 adrian@poppyrecords.invalid.invalid (Adrian Tuddenham) - 2017-03-07 11:24 +0000
      Re: Backup script OS 8.6 Jolly Roger <jollyroger@pobox.com> - 2017-03-07 14:37 +0000
  Re: Backup script OS 8.6 John <johnrethorst@gmail.com> - 2017-09-24 21:13 -0700

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