Global Variables under VM/CMS
(These are the equivalent of environment variables under unix.)
A particular GLOBALV table (CENV) is used to hold the C environment.
The command to set a variable VVVV to a value XXXX is
GLOBALV SELECT CENV SET VVVV XXXX
for example
GLOBALV SELECT CENV SET WWW_HOME http://info.cern.ch/junk.html
Beware of the fact that CMS puts everything into upper case. It is
not obvious how to get around this problem without writing a little
REXX exec to do what you want.