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TethysL CLI Installation

Version: 2.1.0

Java release1

  • Download and unzip in some location of your choice. This will create a directory tethysl-2.1.0/ under that location.

  • Open a terminal session and cd to the extracted tethysl-2.1.0 directory.

  • Run make install as follows depending on where you want the tethysl executable script to be installed. Typically, this could be under some location that you already have as part of the PATH environment variable. Of course, feel free to use whatever practice for this purpose.


    • To install tethysl under the default location ~/local/bin/:

      make install
    • To install tethysl under /usr/local/bin/:

      sudo make install PREFIX="/usr/local"
    • Or, adjust PREFIX as needed and run the make command accordingly.

Version: 2.0.5

Binary releases2

The TethysL CLI executable is available in binary form for Linux, macOS, and Windows.

Download the zip file above for your system. The zip file only contains the executable program, which is named tethysl for Linux and macOS, and tethysl.exe for Windows.


The executable for macOS is not signed, so it will not run right away. You could allow its execution via a command like xattr -d tethysl. Alternatively, you can try the Java based release described below. We plan on improving the release mechanism in the future as needed.

Typically, you will want the CLI executable to be findable through the PATH environment variable.

So, extract the executable from the downloaded zip in a location on your system that is either already part of the PATH or that you can add to the PATH.

To verify the installation and PATH setup, run tethysl --help, which should display the usage message on your terminal.

Java release1

The CLI is also available as a Java Virtual Machine (JVM) application.3 Please try this option if the binary version for your OS is not working properly (and please let us know about the issue).

In this case, you will need a Java runtime environment to execute the TethysL CLI. That is, the java program should be on your PATH.

  • Download and unzip in some location of your choice. This will create a directory tethysl-2.0.5/ under that location.

  • Add the full path to the extracted tethysl-2.0.5/bin directory to your PATH. For example, if you extracted the zip file under ~/Software, you can update the PATH with:

    export PATH=~/Software/tethysl-2.0.5/bin:$PATH
  • Then, as a quick basic verification, run tethysl --help.

  1. By "Java release" we mean an executable format that is to be run via the java program, which is part of a typical Java runtime environment installation.3 In this case, note that the tethysl executable itself is a shell script that takes care of launching TethysL via the java command, which is assumed to be on your PATH. If not already on your system, you can install Java from

  2. By "binary release" we mean a standalone tethysl executable not requiring Java. However, these native executables are not yet part of the regular release workflow. 

  3. The TethysL application itself is written in Scala, one of the languages that target the Java virtual machine. Binary releases from the JVM version have been created using GraalVM technology