unsetenv
Description
The unsetenv procedure deletes environment variables from runenv.
Syntax
unsetenv (name1 [, name2,…]);
Arguments
| name1 | Required. A string or a list of character strings that contain the names of runenv environment variables to delete. |
| name2 | Optional. A string or a list of character strings that contain the names of runenv environment variables to delete. |
Return Values
Because unsetenv is a procedure, no return value is set.
unsetenv ("IFS", "USER");
In this example, the runenv environment variables IFS and USER are deleted.
For more information, see keepenv.
