X-Spam-Check-By: sourceware.org Date: Tue, 23 May 2006 14:02:20 -0400 (EDT) From: Igor Peshansky Reply-To: cygwin@cygwin.com To: bob cc: cygwin@cygwin.com Subject: Re: export arrays in cygwin ksh In-Reply-To: Message-ID: References: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Tue, 23 May 2006, bob wrote: > > Two comments. > > > > One: the output above didn't come from PDKsh in Cygwin (and, most > > likely, didn't even come from the script you posted, since the export > > statement is on line 9 in your script). FYI, there is more than one > > ksh implementation in Cygwin, and you'll need to tell us more about > > your Cygwin installation (by following the Cygwin problem reporting > > guidelines at , especially the bit on > > *attaching* the output of "cygcheck -svr"). > > > > Two: PDKsh doesn't understand the "export a[*]" syntax. It does > > understand the "export a[1]" syntax, and even adds the array elements > > to the export table, but there *is* a bug in it that doesn't actually > > propagate the exported array elements to subshells. I'll look into it > > once I find the time. > > > > Igor Peshansky, volunteer PDKsh maintainer for Cygwin > > Igor > > Thanks much for responding. My responses to your comments: > > Your right on the output... I cut out the stuff I tried but did not work > in the program for clarity. Would be nice to have the complete testcase, including the output... Not that the "export a[*]" syntax would work in it in any case... > And 2 your are also right that it did not come from PDKsh.... I actually > tried to envoke PDKsh by putting #!/bin/PDKsh on line 1 of test1 and > test2 but all I got was an error msg (: bad interpreter: No such file or > directory). The filenames may be case sensitive, too -- the executable is called "pdksh.exe", not "PDKsh.exe". However, if you had followed the Cygwin problem reporting guidelines at , we would have known what packages you have installed on your system. > I have come to realize that there is more than 1 implementation of ksh. > The syntax I used in my example is exactly what I use on my hp unix > workstation and it works fine on the hp. I did try to export individual > elements like you suggest with no luck. What does "ksh -c 'echo $KSH_VERSION'" print on your hpux workstation? How about on Cygwin? What is the output of "ls -l /bin/ksh.exe"? > I did find in my installation in the cygwin/bin dir a file ksh.exe which > is what I assume it was running. Guess that is not pdksh. PDKsh installs a /bin/ksh symlink if none is present. So it could be pdksh. Please follow the above directions so that we can find out. > My own IT people do not know what version of cygwin I am using (I am not > laughing!) I will try to find out more info on this. I think we are > using redhat, but will dig deeper. Thanks Please read and follow the Cygwin problem reporting guidelines at . That will tell us the version of Cygwin and various packages in your installation. > Your last comment - are you saying I may not be able to export my array > data to later processes or script files ? You may try the other ksh packages in Cygwin, and see if they address your problem. Otherwise, the portable solution would be something like # In the parent script for i_ in `seq 0 ${#vname[*]}`; do vname_="$vname_ '${vname[$i_]}'"; done # In the child script eval "set -A vname $vname_" A variant of this solution will also allow "exporting" arrays in bash. HTH, Igor -- http://cs.nyu.edu/~pechtcha/ |\ _,,,---,,_ pechtcha@cs.nyu.edu | igor@watson.ibm.com ZZZzz /,`.-'`' -. ;-;;,_ Igor Peshansky, Ph.D. (name changed!) |,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow! "Las! je suis sot... -Mais non, tu ne l'es pas, puisque tu t'en rends compte." "But no -- you are no fool; you call yourself a fool, there's proof enough in that!" -- Rostand, "Cyrano de Bergerac" -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/