NAME

       true - return true value

SYNOPSIS

       true

DESCRIPTION

       The true utility shall return with exit code zero.

OPTIONS

       None.

OPERANDS

       None.

STDIN

       Not used.

INPUT FILES

       None.

ENVIRONMENT VARIABLES

       None.

ASYNCHRONOUS EVENTS

       Default.

STDOUT

       Not used.

STDERR

       Not used.

OUTPUT FILES

       None.

EXTENDED DESCRIPTION

       None.

EXIT STATUS

       Zero.

CONSEQUENCES OF ERRORS

       None.

       The following sections are informative.

APPLICATION USAGE

       This  utility  is typically used in shell scripts, as shown in the EXAMPLES section. The special built-in
       utility : is sometimes more efficient than true.

EXAMPLES

       This command is executed forever:

              while true
              do
                  command
              done

RATIONALE

       The true utility has been retained in this volume of IEEE Std 1003.1-2001, even though the shell  special
       built-in  : provides similar functionality, because true is widely used in historical scripts and is less
       cryptic to novice script readers.

FUTURE DIRECTIONS

       None.

SEE ALSO

       false , Shell Commands

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                                               TRUE(P)