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intro(1)							      intro(1)

       intro - introduction to commands

       This  section  describes	 publicly  accessible  commands	 in alphabetic
       order.  Certain distinctions of purpose are made	in the headings:

       (1)	 Commands of general utility.

       (1c)	 Commands for communication with other systems.

       (1g)	 Commands  used	 primarily  for	 graphics  and	computer-aided

       (1int)	 Commands used for internationalization.  For more information

       (1mh)	 Commands specific to the Message Handler.

       (1ncs)	 Commands used for NCS (Network	Computing System).

       (1sh5)	 Commands interpreted by the sh5 (System V Release 2) shell.

       (1yp)	 Commands specific to the Yellow Pages (YP) service.

       Commands	related	to system maintenance used to appear in	section	1 ref-
       erence  pages  and  were	 distinguished by (1m) at the top of the page.
       These reference pages now appear	in section 8.

       Upon termination	each command returns two bytes of status, one supplied
       by the system giving the	cause for termination and, in the case of nor-
       mal termination,	one supplied by	the program.   For  more  information,
       see and The former byte is 0 for	normal termination; the	latter is cus-
       tomarily	0 for successful execution.   A	 nonzero  status  indicates  a
       problem	such as	erroneous parameters, or bad or	inaccessible data.  It
       is called variously exit	code, exit status,  or	return	code,  and  is
       described only where special conventions	are involved.


Name | Description | Diagnostics

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