4gl - How Can I Read UNIX* Env. Variables ???

... in my Informix 4gl program ??? =~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~ /*** / ***\\ Hewlett-Packard Company / \\ / Colorado Springs ITC /* / \\ /**\\ /***\\ / \\/ \\ Phone: TN/(719) 590-3402 / \\ \\ Fax: " " 590-3596 / Bill Border \\ \\ EMail: border@cs.itc.hp.com / MVS Technical Support Mailstop: C103G