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Re: Unzip multiple items Applescript-terminal syntax help!
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Re: Unzip multiple items Applescript-terminal syntax help!


  • Subject: Re: Unzip multiple items Applescript-terminal syntax help!
  • From: Cerciello <email@hidden>
  • Date: Fri, 30 Oct 2009 20:46:37 +0100

Well Alex,I don't know the provenance of the zipped files as most of the time are downloads from the net which usually are " rar " files all cut in hundreds of small zipped files.

But I also do archive my finished music production work which consists of hundreds of audio files ".aiff". I tried already to unzip one of those archive and was fine. However, it was zipped with Leopard 10.5 and as I just switched to Snow 10.6, I don't know yet the outcome of my next archive . . time will tell :-)

Mark thanx for the new revamped lines but unfortunately doesn't work.

Best wishes
gC


On Oct 30, 2009, at 3:25 PM, Axel Luttgens wrote:

Le 29 oct. 2009 à 20:34, Cerciello a écrit :

[...]
and back to the other question Axel, yes the integrity of the files and folders appear to be correct as they have icons and works fine. The only exeption are for the aliases which are not resolved. However symlinks are fine. Any idea why?

That's because traditionally, alias files had all relevant info stored in their resource fork. [1]
For example, with an alias created on a Tiger box, I have here:


luttgens$ ls -al somealias somealias/..namedfork/rsrc
-rw-r--r--@ 1 luttgens luttgens 0 30 oct 13:21 somealias
-rw-r--r-- 1 luttgens luttgens 43629 30 oct 13:21 somealias/..namedfork/rsrc


Let's now suppose one has a zip archive of that file, somealias.zip.
When uncompressed with the help of unzip, one ends with two parts:

luttgens$ ls -al somealias __MACOSX/._somealias
-rwxrwxrwx 1 luttgens luttgens 43711 30 oct 14:44 __MACOSX/._somealias
-rwxrwxrwx@ 1 luttgens luttgens 0 30 oct 14:44 somealias


That is, all info now resides in a separate file, ._somealias. [2]
The one that unfortunately gets deleted with the removal of the __MACOSX folder...


This kind of problem may occur not only for resource forks, but for various pieces of metadata as well.

This is why I asked about the provenance of the zipped files.
If they have been created on some Mac OS X box, perhaps a command- line tool such as "ditto" might prove more appropriate.



HTH, Axel


[1] "Traditionally" because it seems that Snow Leopard creates aliases with data in both forks. I guess that this may be related to the new bookmark mechanism.
[2] By making use of a tool such as FixupResourceForks, it is possible to combine both parts back into a single file. _______________________________________________
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References: 
 >Unzip multiple items Applescript-terminal syntax help! (From: Cerciello <email@hidden>)
 >Re: Unzip multiple items Applescript-terminal syntax help! (From: Axel Luttgens <email@hidden>)
 >Re: Unzip multiple items Applescript-terminal syntax help! (From: Cerciello <email@hidden>)
 >Re: Unzip multiple items Applescript-terminal syntax help! (From: Axel Luttgens <email@hidden>)

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