1.   $ NCS/CREATE /LIBRARY=TESTLIB ERRMSG,STARTUP
   The  NCS command  creates  an  NCS library   named TESTLIB.NLB and
   places the definitions from ERRMSG.NCS and STARTUP.NCS in the  NCS
   library.
   2.   $ NCS/INSERT /LIBRARY=TESTLIB SCANLINE
   The NCS command adds the  definitions from SCANLINE.NCS to the NCS
   library TESTLIB.NLB.
   3.   $ NCS/EXTRACT=(ALLOCATE,APPEND)/OUTPUT=MYHELP -
        $_SYS$HELP:HELPLIB.NCS
   The NCS command specifies that the definitions ALLOCATE  and  APPEND
   be  extracted  from  the  NCS library HELPLIB.NLB and output to the
   file MYHELP.NCS.