intro(1m)                  DG/UX 4.30                   intro(1m)



     NAME
          intro - introduction to system maintenance commands and
          application programs

     DESCRIPTION
          This chapter describes, in alphabetical order, commands that
          are used chiefly for system maintenance and administration.
          Other DG/UX commands appear in Chapter 1 of the User's
          Reference for the DG/UX System and Chapter 1 of the
          Programmer's Reference for the DG/UX System (Volume 1).

     COMMAND SYNTAX
          Unless otherwise noted, commands described in this chapter
          accept options and other arguments according to the
          following syntax:

          name [option(s)] [cmdarg(s)]

          name           The name of an executable file.

          option         - noargletter(s) or,
                         - argletter<>optarg
                         where <> is optional white space.

            noargletter  A single letter representing an option
                         without an argument.

            argletter    A single letter representing an option
                         requiring an argument.

            optarg       Argument (character string) satisfying
                         preceding argletter.

          cmdarg         Pathname (or other command argument) not
                         beginning with -, or - by itself, indicating
                         the standard input.

     SEE ALSO
          getopt(1), getopt(3C).
          User's Reference for the DG/UX System
          Programmer's Reference for the DG/UX System

     DIAGNOSTICS
          Upon termination, each command returns two bytes of status,
          one supplied by the system and giving the cause for
          termination, and (in the case of normal termination) one
          supplied by the program (see wait(2) and exit(2)).  The
          former byte is 0 for normal termination.  The latter is
          customarily 0 for successful execution, and non-zero for
          such problems as erroneous parameters, or bad or
          inaccessible data.  It is called variously ``exit code'',
          ``exit status'', or ``return code'', and is described only



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     intro(1m)                  DG/UX 4.30                   intro(1m)



          where special conventions are involved.

     BUGS
          Many commands do not adhere to the described syntax.



















































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