Personal file sharing error, can't find webdav package

I want to share files from my ubuntu laptop to my mac pro (mac os x), my question is, what do I have to install to be able to use this program?

I tried to install "WebDAV" but I couldn't find it. (sudo apt-get install webDAV) I looked in the help section for more info but nothing there helped me.

Opening any APT GUI (Synaptic, Ubuntu Software Centre etc) and searching All Software for webDAV will show a list of results which includes Personal File Sharing and will look something like this

Selecting Personal File Sharing click on the "More Info" button which will show the add ons available which are shown like so

You need to install these packages:

• apache2.2-bin

• libapache2-mod-dnssd

Through the Terminal (Command Line)

sudo apt-get install apache2.2-bin
sudo apt-get install libapache2-mod-dnssd  

If you want to share files using samba..

First you need to install samba, to do this open a terminal window (press Alt+F2 and type: gnome-terminal) and copy+paste the following line:

sudo apt-get install samba samba-common system-config-samba

After installing samba you need to go to the location of the folder you want to share or you can make a new folder. To make a new folder click with your right mouse button and select Create Folder and name your folder.

Now start the Samba Server Configuration (press Alt+F2 and type: gksu system-config-samba) enter your password and click on the OK button. To add a folder you want to share click on the + button followed by clicking on the Browse button. Select the folder you want to share and click on the OK button. Enter a description for your shared folder. Mark the check boxes if you want the folder to be writable or visible. Click on the Access tab and give access to the user(s) you want, when finished click on the OK button. Now the shared folder is added to your Samba Server Configuration.

Now go to the folder you want to share, select the folder and click on it with your right mouse button and select Sharing Options. Add a comment and change the permissions for others to create and delete files and for the guest access rules. When done click on the Create Share button. Now you will be asked if you want nautilus to add some permissions automatically… click on the Add the permissions automatically button.

After this step you are finished and your shared folder will be visible and accessable from another computer in your network using Windows or Ubuntu.