The permissions most likely started out as 0755 because of your umask is set to 0022 (a common default - man umask for exactly what the umask means)

As for the ownership, unless you're running the script as root, you probably don't have the permissions to change the ownership of a file - always check your return codes for errors!

In reply to Re: change owner & mod by fs
in thread change owner & mod by Anonymous Monk

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