Are the source and target directories different? I think this is happening because of umask.
From perldoc for File::Copy
You may use the syntax use File::Copy "cp" to get at the cp alias for this function. The syntax is exactly the same. The behavior is nearly the same as well: as of version 2.15, <cp> will preserve the source file's permission bits like the shell utility cp(1) would do, while copy uses the default permissions for the target file (which may depend on the process' umask, file ownership, inherited ACLs, etc.).

In reply to Re: copying files from cgi perl script is modifying target file permissions by cheekuperl
in thread copying files from cgi perl script is modifying target file permissions by bhagperl

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