## 3.2.1 For Linux Users

The commands needed for the installation are shown throughout this section. The $>$ in the first line indicates a command prompt. The bold and the italic texts in the command indicate the input from the user and the output from the system, respectively. The following is an example of the command prompt.

> echo Hello World!
Hello World!


The display of the command prompt may vary depending on the user’s working environment (e.g. %, \$). The bold text in the first line of the command prompt is the input from the user. Based from the example above, this is the seventeen letters (including the spaces) of echo Hello World!. Enter key is then pressed at the end-of-line. The italic text in the second line is the output from the system. It is displayed after pressing the Enter key at the end of the first line. A part of the user’s input and the system’s output contains the version and the release numbers. Thus, alteration may be needed depending on the actual version and release to be installed. In addition, system messages shown may differ depending on the availability of the libraries, which can be installed optionally. Even if the messages are not completely identical to the one shown in this manual, the user may proceed as long as there is no error message displayed.

For Ubuntu Ubuntu users can install using HARK Debian packages. Before proceeding with the installation, the user must first register the HARK repository. Refer to this link on how to register HARK repository: HARK installation instructions

Then, install the package using the following commands:

> sudo apt update
> sudo apt install hark-base harkmw hark-core
> sudo apt install hark-designer
> sudo apt install harktool5 harktool5-gui
> sudo apt install kaldidecoder-hark


Source compilation is required when installing HARK to a different environment. See HARK installation instructions on how to get, compile and install from the source code.