Thanks for supplying that information.
M Marcinik wrote:
the first thing terminal does is show a user name that does not exist in the account system preference.
I gather you mean the "prompt" that is shown before each command in a Terminal session. If you type the command "echo $LOGNAME" (without the quotes), you should see the same value. That value is known as the "short name". Open the "Users & Groups" panel of System Preferences. If the lock in the lower-left corner is "closed", click on it and authenticate. Then to a right- (or control-) click on your account entry in the column on the left. You should see a "contextual menu" choice of "Advanced Options". Click on that. In the resulting panel you should see an "Account name" that matches what you see in the Terminal window. Do you have any idea where that value came from? In that panel also note the value of "User ID". That might be useful later in this problem-solving exercise.
If the only problem on your Mac is that you don't like the "Account name" setting, you could choose to live with it. Do you change it, see this Apple document.
There is a locked folder under under go/ computer/ shared/ Time Capsule/ shared.
I don't see that on either of two Macs I have running two different major versions of OS X. On either one invoking Go > Computer opens a panel showing the Mac's boot drive, an entry labeled "Network", and an entry for a USB drive attached to my Time Capsule. By "shared" do you mean the "Shared" section in the "sidebar" of that Finder window? On my Macs there's an entry there for my Time Capsule. If I select that, the main part of the Finder window shows the internal "Data" drive of the Time Capsule and the USB drive attached to it. I don't see anything named "shared". Did you rename the Time Capsule's internal drive to "shared"? (Oddly, when I select either of those disks, I can't invoke File > Get Info at all. If neither disk is selected and I invoke File > Get Info, the info panel for the Time Capsule shows a "General" section, a "More Info" section" with an endlessly spinning gear followed by the text "Fetching...", and a "Preview" section that shows a picture of the Time Capsule.) If I double-click on the icon for the Time Capsule's internal disk, it will mount and appear on my Mac's Desktop. If I do a File > Get Info on that disk icon, the resulting panel has no "Lock" checkbox.
Please clarify the issues I mention above so that I can continue my analysis.