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EXIT(1P)		   POSIX Programmer's Manual		      EXIT(1P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       exit - cause the shell to exit

SYNOPSIS
       exit [n]

DESCRIPTION
       The exit utility shall cause the shell to exit  with  the  exit	status
       specified  by  the  unsigned decimal integer n.	If n is specified, but
       its value is not between 0 and 255  inclusively,	 the  exit  status  is
       undefined.

       A  trap	on  EXIT shall be executed before the shell terminates, except
       when the exit utility is invoked in that trap itself, in which case the
       shell shall exit immediately.

OPTIONS
       None.

OPERANDS
       See the DESCRIPTION.

STDIN
       Not used.

INPUT FILES
       None.

ENVIRONMENT VARIABLES
       None.

ASYNCHRONOUS EVENTS
       Default.

STDOUT
       Not used.

STDERR
       The standard error shall be used only for diagnostic messages.

OUTPUT FILES
       None.

EXTENDED DESCRIPTION
       None.

EXIT STATUS
       The exit status shall be n, if specified. Otherwise, the value shall be
       the exit value of the last command executed, or zero if no command  was
       executed.  When	exit is executed in a trap action, the last command is
       considered to be the command that executed  immediately	preceding  the
       trap action.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
       Exit with a true value:

	      exit 0

       Exit with a false value:

	      exit 1

RATIONALE
       As  explained  in  other sections, certain exit status values have been
       reserved for special uses and should be used by applications  only  for
       those purposes:

	126   A	 file  to  be executed was found, but it was not an executable
	      utility.

	127   A utility to be executed was not found.

       >128   A command was interrupted by a signal.

FUTURE DIRECTIONS
       None.

SEE ALSO
       Special Built-In Utilities

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the	referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			      EXIT(1P)
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