Introduction

Check your OS version: make sure that you are running on one of the supported UNIX versions listed in System Requirements, or a UNIX version that is binary-compatible with one of these versions.

You must be running X Windows: the IDL or ENVI installation program has a Motif graphical user interface and requires you to be running X Windows. (If you cannot install from a machine running X Windows, see the instructions in the /unix/install/no_gui directory on your IDL or ENVI installation disk.)

After you have installed IDL or ENVI (see Installing IDL), use the License Wizard to retrieve and install a license. You can license IDL or ENVI later by typing ittlicense at the UNIX prompt after you have set up your environment as described in Defining Environment Variables and Aliases.