  The terse system file deletion dept 
 The Question is:
 
How to delete system files
 
 
 The Answer is:
 
  Beware of deleting system roots via the DCL command DELETE, as
  indiscriminant use of the DELETE command on common root structure
  typically found on an OpenVMS system disk can (and often will)
  cause severe damage to all OpenVMS system roots sharing the common
  root structure.
 
  To delete OpenVMS system roots from a cluster common root structure,
  you will want to use CLUSTER_CONFIG or CLUSTER_CONFIG_LAN.
 
  If the target files are not in a common root and are not alias
  entries, you can use the DCL command DELETE or the equivilent
  LIB$DELETE_FILE callable interface that is available to programs.
 
