Section: POSIX Programmer's Manual (1P)
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.
--- continue for, while, or until loop
is specified, the
utility shall return to the top of the
is not specified,
shall behave as if
was specified as 1. Returning to the top of the loop involves
repeating the condition list of a
loop or performing the next assignment of a
loop, and re-executing the loop if appropriate.
The value of
is a positive decimal integer. If
is greater than the number of enclosing loops, the outermost enclosing loop
shall be used. If there is no enclosing loop, the behavior is unspecified.
The meaning of ``enclosing'' shall be as specified in the description of the
See the DESCRIPTION.
The standard error shall be used only for diagnostic messages.
value was not an unsigned decimal integer greater than or equal to 1.
CONSEQUENCES OF ERRORS
The following sections are informative.
for i in *
if test -d "$i"
printf '"%s" is not a directory.\n' "$i"
, Special Built-In Utilities
Portions of this text are reprinted and reproduced in electronic form
from IEEE Std 1003.1-2017, Standard for Information Technology
-- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, 2018 Edition,
Copyright (C) 2018 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
Any typographical or formatting errors that appear
in this page are most likely
to have been introduced during the conversion of the source files to
man page format. To report such errors, see