How to change file ownership?

[sidsel]

I have a phpscript that create some thumbsnails and now I want to make some new thumbs in a different size by overwriting the old ones.

The problem is that during a serverchange I uploaded all the thumbs manually from the old to the new server.

Now I get writing forbidden by all the thumbs I uploaded myself but not the newer ones that are created by php.

How do I force php/apache to let me overwrite files that have a different owner?

[devinemke]

[man]chown[/man]

[sidsel]

Unfortunately both CHOWN and CHMOD gives me a "Operation not permitted" error

[kburger]

Then it's not a PHP issue. It's a file ownership/permissions issue. The webserver 'user' only has certain things it can do with files it doesn't own. Hopefully you understand UNIX file permissions and how they work. If not, you might want to read a tutorial.

[maxpup979]

so go into the server, and check the file permissions on your thumbs. I am betting that they are not set to allow apache to write. so change the owner to the apache user (whatever that may be on your system), and give it another try.