usage(1)                   DG/UX 4.30                    usage(1)



     NAME
          usage - retrieve a command description and usage examples

     SYNOPSIS
          [ help ] usage [ -d ] [ -e ] [ -o ] [ command_name ]

     DESCRIPTION
          The DG/UX system Help Facility command usage retrieves
          information about DG/UX system commands.  With no argument,
          usage displays a menu screen prompting the user for the name
          of a command, or allows the user to retrieve a list of
          commands supported by usage.  The user may also quit and
          exit to the shell by typing q.

          After a command is selected, the user is asked to choose
          among a description of the command, examples of typical
          usage of the command, or descriptions of the command's
          options.  Then, based on the user's request, the appropriate
          information will be printed.

          A command name may also be entered at shell level as an
          argument to usage.  To receive information on the command's
          description, examples, or options, the user may use the -d,
          -e, or -o options respectively.  (The default option is -d.)

          From any screen in the Help Facility, a user may execute a
          command via the shell (sh(1)) by typing a ! and the command
          to be executed.  The screen will be redrawn if the command
          that was executed was entered at a first level prompt.  If
          entered at any other prompt level, only the prompt will be
          redrawn.

          By default, the Help Facility scrolls the data that is
          presented to the user.  If you prefer to have the screen
          clear before printing the data (non-scrolling), set the
          shell environment variable SCROLL to no.  In the Bourne
          shell, sh(1), do this by adding the following line to your
          .profile file (see profile(4)):

          SCROLL=no; export SCROLL

          In the csh(1), add the following line to your .login file:

          setenv SCROLL no

          If you later decide that you prefer scrolling, set SCROLL to
          yes.

          Information on each of the Help Facility commands (starter,
          locate, usage, glossary, and help) is located on their
          respective manual pages.




     Licensed material--property of copyright holder(s)         Page 1

     usage(1)                   DG/UX 4.30                    usage(1)



     SEE ALSO
          csh(1), glossary(1), help(1), locate(1), sh(1), starter(1).
          term(5) in the Programmer's Reference for the DG/UX System.

     WARNINGS
          If the shell variable TERM (see sh(1)) is not set in the
          user's .profile or .login file, TERM will default to the
          terminal value type 450 (a hard-copy terminal).  For a list
          of valid terminal types, refer to term(5).














































     Licensed material--property of copyright holder(s)         Page 2