On Wed, October 14, 2009 11:11 pm, igor denisov wrote:
> Hi there
>
> my version of ksh:
>
> $what /bin/ksh
>
> /bin/ksh
> Copyright (c) 1989, 1993
> $OpenBSD: mknod.c,v 1.1 2005/10/06 06:39:36 otto Exp $
> PD KSH v5.2.14 99/07/13.2
>
> I cannot figure out what is wrong with the following code
>
> #! /bin/ksh
> for (( i=9; i>0; i-- ))
> do echo "$i"
> done
>
> output:
> syntax error: '((' unexpected.
> why?
> regards
> --
> igor denisov.
OpenBSD's ksh does not support that syntax for 'for':
for name [in word ...]; do list; done
For each word in the specified word list, the parameter name is
set to the word and list is executed. If in is not used to spec-
ify a word list, the positional parameters ($1, $2, etc.) are
used instead. For historical reasons, open and close braces may
be used instead of do and done e.g. for i; { echo $i; }. The ex-
it status of a for statement is the last exit status of list; if
list is never executed, the exit status is zero.
--
Joe Gidi
[email protected]
