## $SHELL

### Definition

This environment variable is optional. It defines which command shell is used by the tools of the development environment to execute operating system commands in description files.

If you do not set this environment variable, the following command shells are used:

· Windows: cmd /c

· UNIX/Linux: sh

You cannot use the following command shells: csh, tcsh

We recommend that you use sh or bash on UNIX/Linux.

### Example

/usr/local/bin/bash