How to swap between versions of the TELEMAC system
It is rather common to have more than one version of the TELEMAC system installed at the same time. Most developers will have at least the current stable and development versions installed at the same time. This article gives some hints on how to set up a system with concurrent versions alongside each other.
Telemac tree
SYSTELCFG
The TELEMAC system allows several configuration directories. By default, it looks for /path/to/systel90/config/. However, if the environment variable SYSTELCFG it will use its value as the location of the configuration diirectory. This is very useful to change configuration "on the fly"