Question: I'm having problems:

* dpkg was interrupted
* broken packages
* Unable to lock the administration directory

And I think they are related.

Answer: 
Ubuntu comes with a very handy indexation of its contents. Simply type:

```
locate oragi

```

Do note this indexation is based on a database that is automatically updated, this means that very recent files won't be found by the *locate* command. Normally this is not a big issue, but if you need the database to be immediately updated you can type:

```
sudo updatedb

```

Cheers! :)
Well if you have installed it correctly , then follow the command 

```
whereis oraji

```

This will display where it is installed.

**Additional info:**   

 if you have used the following commands as given in your link to install oraji :

```
sudo add-apt-repository -y ppa:neurobin/ppa
sudo apt-get update
sudo apt-get install oraji

```

The above commands add the ppa to your system and on issuing cmd **sudo apt-get install oraji** it will install it like a software. But this doesn't seems to be a software more like a script packaged to install oracle. So probably it will be installing the java in your system. So after installing oraji , in the terminal type command as follows :

```
java --version

```

If everything went fine , you will see java version installed.