Problems with the setenv command

If the setenv command fails with a message like: `setenv: command not found' or `setenv: not found', you are very likely not using a command interpreter (shell) of a C-Shell flavour (e.g. csh or tcsh). Please replace the command setenv my_variable my_value by the following command sequence my_variable=my_value ; export my_variable

No blank characters ` ' must be present in the my_variable=my_value command. Otherwise you will get an error message like `my variable not found'.