Example

 $ PROCPRIV = F$PRIVILEGE("OPER,GROUP,TMPMBX,NONETMBX")
 $ SHOW SYMBOL PROCPRIV
   PROCPRIV = "FALSE"

     The F$PRIVILEGE function is used to test whether the process
     has OPER, GROUP, and TMPMBX privileges and if you do not have
     NETMBX privileges.

     The process in this example has OPER (operator), GROUP, TMPMBX
     (temporary mailbox), and NETMBX (network mailbox) privileges.
     Therefore, a value of FALSE is returned because the process has
     NETMBX privilege, but NONETMBX was specified in the priv-states
     list. Although the Boolean result for the other three keywords
     is true, the entire expression is declared false because the
     result for NONETMBX was false.