Directory for users to drop files - need listing but no read

[OdinsDream]

I'm interested in creating a directory that has permissions set in the following way:

• I have read, write, and execute permissions
  
• group has write permission
  
• world has write permission
  
  
• group has the ability to place files in the directory, and do ls on the directory to verify their file exists.
  

That last point is what I can't figure out how to do. If I give people write permission, but deny read, they consequently can't list the files in the directory. My intention is to allow submissions to this directory, and also let people do ls to be sure that what they just submitted actually got placed. I don't, however, want people to be able to read the other files in this directory.


Any ideas?

[mooman]

To list files in the directory, the directory itself (not the files) needs "execute" permissions.

EDIT: More specifically, you'd assign group +x permissions to the directory.

BTW, are they copying existing files into it? Having new files get created? Where are these new files coming from...?
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Linux user off and on since circa 1995

[rac]

It's more of a umask thing than a directory permission thing. Set perms on the directory to 1770 (the sticky bit will stop people from renaming other people's files), and have all users putting things into that directory use umasks of 077.

While I'm here, I think OTG is a better place for this than Portage & Programming.
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For every higher wall, there is a taller ladder

[mooman]

Here's an article that may help. Lots of handy examples with clear summaries:

http://www.linuxpowered.com/html/editorials/file.html
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Linux user off and on since circa 1995

[OdinsDream]

Thanks for the tips and references guys! The last link seems especially useful.