To change the default user to the mac user you are logging in, you need to use “sudo” command to edit XAMPP configuration file.

If you are using normal text editor to edit the configuration file, you will get permission denied error.

Follow commands below:

In Terminal, type in command below to start edit the file.

sudo nano -w +114 /Applications/XAMPP/xamppfiles/etc/httpd.conf

Look for “User nobody”.

Change “nobody” to your user id.

Example: “User loginuser”.

Save it by key in ^O.

That all and you will have mac user running your XAMPP.

With this default user matched to your Mac user, you also solve the permission problem occurred when upgrade WordPress.

When wordpress is upgraded by using one-click install, a copy of the wordpress folder will be store as xxx.com.old.

We would like to delete it to free some space, but is can’t be deleted completely. That is because there are file (advanced-cache.php -> plugins/wp-cache/wp-cache-phase1.php) been locked and FTP user do not have permission to delete it. You have to be Shell User.

Change your permission using Manage User Function in Dreamhost Control Panel. Then using SSH clients such as Putty to telnet in your dreamhost FTP Server.

cd xxx.com.old
cd wp-content
rm advanced-cache.php