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Do you need execute permission to navigate to a directory?

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Operating Systems AIX Do you need execute permission to navigate to a directory?
# 1  
Old 05-07-2010
Do you need execute permission to navigate to a directory?
i have a user 'bart' which does not belong to apps group (as shown below) and i want him to be able to navigate to TEST directory.. i gave him read access but he cannot get through. when i added execute permission he was able to navigate to TEST

Code:
drwxr-xr--    3 draco     apps          4096 Apr 19 19:37 TEST

why is that? i thought read access should suffice?

by the way bart is a user from an external server
Last edited by pludi; 05-09-2010 at 10:43 AM..
# 2  
Old 05-07-2010
Yes, he does need it.
  • Read permission = permission to list the contents of a directory, but not necessarily the files in in
  • Write permission = permission to create new entries in the directory (=create new files), but not necessarily modify the existing files
  • eXecute permission = permission to chdir to the directory, but not necessarily to run the files therein

Eg. with just the read permission he may do
Code:
ls TEST/*

With just the execute permission he may cd into it, but will never see any of the files in it.
# 3  
Old 05-07-2010
You might want to read one of our tutorials, written by archbishop (of the reformed SysV-church) perderabo: https://www.unix.com/tips-tutorials/1...rmissions.html

It will tell you everything you need to solve this puzzle and much more you probably might want to know too about the subject.

I hope this helps.

bakunin
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