Re: Alias Files
Re: Alias Files
- Subject: Re: Alias Files
- From: Luther Fuller <email@hidden>
- Date: Wed, 12 Sep 2007 16:54:02 -0500
On Sep 12, 2007, at 4:07 PM, Doug McNutt wrote:
At 12:21 -0500 9/12/07, Luther Fuller wrote:
I ran into a problem late yesterday. I'll spare you all the gory
details and offer this problem instead ...
A folder contains two files exactly, one of the files is an alias
file
pointing to the other file. Write a script that will remove ONLY
the alias file from this folder.
If the alias file was created by Mac OS X, then the problem is
easy to solve. Ask the Finder for a list of the contents of the
folder, then find and delete the item whose 'class of item ...'
is 'alias file'.
But, what if the alias file is a symlink? (The folders I'm
actually dealing with are from an ISO 9660 CD)
I'm thinking that it can't be done.
I'm not quite sure what "exactly" means here. You really can't have
two files with the exact same name in a single folder.
I should have said "exactly two".
But watch for suppressed extensions as practised by Finder. Even
if you have Finder set to display extensions it NEVER displays
a .app extension. That can make two files, an APPL and an alias to
it appear to have the same name but deep down in the system, one of
them really has a .app extension. If you "remove" it with a shell
rm command you'll have to add the extension while you would have no
extension on the symlink.
In this case, the files DO have different names and extensions are
not a problem. Let's keep the problem simple!
If the files show different names and "exactly" just means there
are only two files the symlink will show itself with a ls -F
command or, probably, with a Finder GetInfo command. In icon view
OS 10.3.9 shows a little arrow on symlinks as well as on alias
files. I donno about 10.4 and I'm not ready to drop my SE/30 file
server so I can use it.
My experience is that in a list of file references, Mac 'Alias Files'
are not resolved to their original item, but symlinks are
automatically resolved to their original item. Perhaps a solution to
my problem would be to get the list of files using a 'do shell
script'. But, I'm not sure what the proper command might be.
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