[pdksh]getopts problem in conjunction with shift

Igor Pechtchanski pechtcha@cs.nyu.edu
Mon Jan 3 20:42:00 GMT 2005


On Sun, 2 Jan 2005, Kenneth Stephen wrote:

> Hi,
>
>     I have the following script (a.ksh) :
>
> $ cat a.ksh
> #!/usr/bin/ksh -x
>
> echo $*
> getopts abc var
>
> echo $?
> echo $var
> echo $OPTIND
> echo $OPTARG
>
> shift
>
> echo $*
> getopts abc var
>
> echo $?
> echo $var
> echo $OPTIND
> echo $OPTARG
>
>     When run on AIX ksh, it produces the following (expected output) :
>
> $ ./a.ksh -a something
> + echo -a something
> -a something
> + getopts abc var
> + echo 0
> 0
> + echo a
> a
> + echo 2
> 2
> + echo
>
> + shift
> + echo something
> something
> + getopts abc var
> + echo 1
> 1
> + echo ?
> ?
> + echo 2
> 2
> + echo
>
>     On Cygwin (pdksh 5.2.14-3), it produces :
>
> bash-2.05b$ ./a.ksh -a something
> + echo -a something
> -a something
> + getopts abc var
> + echo 0
> 0
> + echo a
> a
> + echo 2
> 2
> + echo
>
> + shift
> + echo something
> something
> + getopts abc var
> ./a.ksh[14]: -m: unknown option
> + echo 0
> 0
> + echo ?
> ?
> + echo 2
> 2
> + echo
>
>     Why is it dying like this?

This seems to be PDksh-specific, but not Cygwin-specific, behavior -- it
does the same for me on Linux.  Feel free to report it to the upstream
maintainer (see <http://web.cs.mun.ca/~michael/pdksh/> for bug reporting
instructions).  Thanks for the report, I'll also investigate as time
permits.

Igor Pechtchanski, the Cygwin PDksh maintainer
-- 
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