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

NAME
       return - return from a function

SYNOPSIS
       return [n]

DESCRIPTION
       The  return utility shall cause the shell to stop executing the current
       function or dot script. If the shell is not currently executing a func-
       tion or dot script, the results are unspecified.

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  value  of the special parameter '?' shall be set to n, an unsigned
       decimal integer, or to the exit status of the last command executed  if
       n  is not specified. If the value of n is greater than 255, the results
       are undefined.  When return is executed in a trap action, the last com-
       mand  is considered to be the command that executed immediately preced-
       ing the trap action.

CONSEQUENCES OF ERRORS
       Default.

       The following sections are informative.

APPLICATION USAGE
       None.

EXAMPLES
       None.

RATIONALE
       The behavior of return when not in a function  or  dot  script  differs
       between  the  System  V  shell and the KornShell. In the System V shell
       this is an error, whereas in the KornShell, the effect is the  same  as
       exit.

       The  results  of  returning  a  number  greater  than 255 are undefined
       because of differing practices in the  various  historical  implementa-
       tions.  Some  shells AND out all but the low-order 8 bits; others allow
       larger values, but not of unlimited size.

       See the discussion of appropriate exit status values under exit .

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                            RETURN(P)

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