Logical Name Tables

  OpenVMS provides the following logical name tables:

  Table          Description

  Job table      Contains logical names available to all your processes
                 and subprocesses.

  Group table     Contains logical names available to all users with the
                 same user identification code (UIC) group number.
                 Your UIC code identifies the name of the group to
                 which you belong and your unique name within the
                 group.

  System table     Contains logical names available to all users on the
                 system.

  You can also create your own logical name table that is
  private to your process or shareable by others.

  When you enter a logical name as part of a command
  line, the system translates the logical name.  It does this
  by searching the job, group, system, and any other logical
  name tables specified by the logical name LNM$FILE_DEV.
  (LNM$FILE_DEV is a special system logical name defined
  in the LNM$SYSTEM_DIRECTORY table.  It specifies
  the search order that the Session Manager and all other

  OpenVMS components use to translate logical names.)