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FILE_DELETE on Mac OS ignores write permissions [message #70393]

Thu, 08 April 2010 14:05

Kenneth P. Bowman
Messages: 585
Registered: May 2000

Senior Member

I discovered a few days ago that in IDL 7.1.1, FILE_DELETE on OS X 10.6 ignores
file permissions and deletes files that have write permission turned off.

I create a file named test.txt and turn off write permission. �
As expected, I cannot delete it from the command line without
confirming that I want to override permissions.

stretch> touch test.txt
stretch> chmod u-w test.txt
stretch> ll test*
-r--r--r-- �1 bowman �bowman �0 Apr �8 15:45 test.txt
stretch> rm test.txt
override r--r--r-- �bowman/bowman for test.txt? n
stretch> ll test*
-r--r--r-- �1 bowman �bowman �0 Apr �8 15:45 test.txt

If I go to IDL and issue this command

IDL> file_delete, 'test.txt', /verbose
% FILE_DELETE: Removed file: test.txt.

The file is deleted despite the lack of write permission.

stretch> ll test*
ls: No match.

I have filed a bug report with ITTVIS.

Ken

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