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+#$EPIC: setenv.txt,v 1.3 2006/08/29 18:22:56 sthalik Exp $
+======Synopsis:======
+__setenv__ <var-name> <value> \\
+__setenv__ -<var-name>
+======Description:======
+In the first usage, __SETENV__ sets the environment variable <var-name>
+to <value>.  This new value will be visible to all of the processes that
+you [[exec command|EXEC]].  In the second usage, the environment
+variable <var-name> is unset (deleted), and is no longer visible to
+[[exec command|EXEC]] processes.
+Some systems (like Solaris) make changing and deleting environment
+variables painful.  Upon these kinds of systems, EPIC may output a
+warning advising you that setting an environment variable will result
+in a memory leak which is unavoidable.  These systems also do not
+have an easy way to unset environment variables.  If you try, you will
+get a warning telling you this.