Mail Archives: cygwin/2007/02/22/10:49:15
moka AT hol DOT gr wrote:
> Better now, but still something is missing cygwin is under c:\cygwin e.g. c:\cygwin\bin
>
> There I see
>
> \bin\gracebat.exe->/usr/grace/bin/xmgrace.exe
>
What is this? There is no \bin\gracebat.exe. Cygwin doesn't use
backslashes in path names. So then how do you "see" this?
> but also the same for /bin/xmgrace.exe
>
Ditto. How do you "see" this. BTW "this" doesn't look like "that" which
looked more like a symlink.
BTW2 You are aware that Cygwin mounts C:\Cygwin\bin onto both /bin and
/usr/bin...
> The script directory is c:\cygwin\mydir
>
> so in the perl script
> my $updir='..';
> my $gracebat=$updir .'/usr/grace/bin/xmgrace ';
>
What's this $updir stuff? It's unnecessary.
Also, are you executing a .bat file as alluded to in the past, or
gracebat.exe or xmgrace.exe. This is sooo confusing!
> system("$gracebat ... -printfile $printfile....");
>
Might as well show what's contained in the "..." portions... and
$printfile for that matter! Don't post code fragments that wouldn't get
through the Perl interpreter! Post enough of your Perl code so that
somebody else could copy and paste it to Perl and expect no errors.
Granted we may not have xmgrace.exe but at least we'd have enough of the
"story".
> prints to the screen, not the file.
>
Again, are you running Cygwin's perl or ActiveState. Is gracebat.exe (or
xmgrace.exe) a Windows oriented executable or Cygwin oriented executable?
What happens if you type the contents of "$gracebat ... -printfile
$printfile..." in to the bash shell directly?
> This looks right to me, since gracebat and xmgrace link to the SAME
> executable, xmgrace.exe.
>
> How can I get $gracebat to do whatit would do on linux, i.e.
> write to a file(I tested this on linux and it works fine)
> ?
>
Did you test it on Cygwin? By that I mean can you type in the command
line to the bash shell such that it works correctly? Once that's achieve
the task is to get Perl to compose the same command line.
>
>>> On Wed, 21 Feb 2007, moka wrote:
>>>
>>>
>>>> I do startxwin to open X and then do
>>>> gracebat <parameters>
>>>> this does what I want, namely produce a jpeg file
>>>>
>>>> Now if I try this for a perl script(run from X)
>>>> system(gracebat <parameters>)
>>>>
>>>> i.e. the exact same line that produced the right result
>>>> I get an error.
>>>>
>>>> I guess the reason is that I am using the activestate perl instead of
>>>>
>> the
>>
>>>> cygwin
>>>> perl; anyway there were reasons for that, not sure if valid or not[the
>>>>
>>> reason
>>>
>>>> was getting DBD::Oracle to work, which was a huge pain].
>>>> So I guess "system" to perl is whatever system Activestate was installed
>>>>
>>> for,
>>>
>>>> i.e. Windows.
>>>> The question is:
>>>> Is it possible to get around this?
>>>> Can I tweak the system command so that it executes gracebat(but
>>>> otherwise use Activestate, e.g. for Oracle DBI queries?
>>>>
>>> As the package list shows (I don't have grace installed), gracebat is a
>>> symlink. A Windows program like ActiveState Perl will not understand
>>> Cygwin's symlinks (nor will it run a shell script, since it uses cmd as
>>> its shell). The easiest thing you can do is invoke a Cygwin shell (bash,
>>> sh, pdksh, etc) and let it run the command. That way, no matter what the
>>> command is (an executable, or a symlink, or a shell script), the shell
>>> will interpret it for you and invoke it properly.
>>>
>>> Be careful with quoting -- you may want to use the list form of
>>> system()...
>>> Igor
>>> --
>>> http://cs.nyu.edu/~pechtcha/
>>> |\ _,,,---,,_ pechtcha AT cs DOT nyu DOT edu | igor AT watson DOT ibm DOT com
>>> ZZZzz /,`.-'`' -. ;-;;,_ Igor Peshansky, Ph.D. (name changed!)
>>> |,4- ) )-,_. ,\ ( `'-' old name: Igor Pechtchanski
>>> '---''(_/--' `-'\_) fL a.k.a JaguaR-R-R-r-r-r-.-.-. Meow!
>>>
>>> Freedom is just another word for "nothing left to lose"... -- Janis
>>>
>> Joplin
>>
>>> --
>>> 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/
>>>
>>>
>>>
>>
>>
>> --
>> 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/
>>
>>
>>
>
>
>
>
>
--
Andrew DeFaria <http://defaria.com>
Deja Fu: The feeling that you've screwed this up before.
--
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/
- Raw text -