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BREAK(P)			    POSIX Programmer's Manual				 BREAK(P)

NAME
       break - exit from for, while, or until loop

SYNOPSIS
       break [n]

DESCRIPTION
       The  break  utility  shall  exit from the smallest enclosing for, while, or until loop, if
       any; or from the nth enclosing loop if n is specified. The value of n is an unsigned deci-
       mal  integer  greater  than or equal to 1. The default shall be equivalent to n=1. If n is
       greater than the number of enclosing loops, the outermost enclosing loop shall be  exited.
       Execution shall continue with the command immediately following the loop.

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
	0     Successful completion.

       >0     The n value was not an unsigned decimal integer greater than or equal to 1.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
	      for i in * do
		  if test -d "$i" then break fi done

RATIONALE
       In  early proposals, consideration was given to expanding the syntax of break and continue
       to refer to a label associated with the appropriate loop as a  preferable  alternative  to
       the  n method. However, this volume of IEEE Std 1003.1-2001 does reserve the name space of
       command names ending with a colon. It is anticipated that a  future  implementation  could
       take advantage of this and provide something like:

	      outofloop: for i in a b c d e
	      do
		  for j in 0 1 2 3 4 5 6 7 8 9
		  do
		      if test -r "${i}${j}"
		      then break outofloop
		      fi
		  done
	      done

       and that this might be standardized after implementation experience is achieved.

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 orig-
       inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group			       2003					 BREAK(P)
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