[sf-perl] simultaneous processes?

[Richard Reina]

Both solutions seem to work.  However, if I add complexity to the second
part of the statement ( which is where this program will eventually be
heading) I am having trouble.

Nevertheless, the solutions do work for what is posted below and I am very
grateful for the replies.

Again, thank you very much.

2010/3/5 mehryar <mehryar at mehryar.com>

>
> I think you want qq{ } so the $file variable gets interpolated - q{ } will
> not do variable interpolation.
>
> cheers,
> -Mehryar
>
>
>
> On Fri, 5 Mar 2010, Richard Reina wrote:
>
>  Hi Garth,
>>
>> Thank you for he reply.  What I am trying to do is run two programs
>> simultaneously and pass an argument in the form of a scalar to one of the
>> programs.
>>
>> Here's the code from the program ( I am retyping it as the machine it's on
>> does not get connected to the internet)
>>
>> system(q{ ( evince /usr/local/docs/$file & ) ; gnome-terminal"});
>>
>> evince opens with the error message:
>>
>> Unhandled MIME type: "x-directory/normal"
>>
>> However,
>>
>> system(q{ ( evince /usr/local/docs/file_name.tif & ) ; gnome-terminal"});
>>
>> works ( the file opens fine and so does the terminal next to it.)  I need
>> to
>> find a way to be able to pass the file name to evince.
>>
>> Thanks, again for the reply.  Hopefully, this can be solved.
>>
>>
>>
>> 2010/3/5 Garth Webb <garth.webb at gmail.com>
>>
>>  I think I'm lost on what you're trying to do; if its not too lengthy, can
>>> you post exactly the script you're trying to run with the environment
>>> variables (e.g. $file) explicitly defined?
>>>
>>> If you're really doing a "perl -e" just to run system, you might consider
>>> making this a shell script instead of a perl script.
>>>
>>> Garth
>>>
>>> 2010/3/5 Richard Reina <gatorreina at gmail.com>
>>>
>>> The solution below works. But when I have to pass a scalar to the program
>>>
>>>> it does not.  For example if I do something like:
>>>>  perl -e'system(q{ ( evince $file & ) ; xlogo });'
>>>>
>>>> evince opens with this error Unhandled MIME type: "x-directory/normal"
>>>>
>>>> Does any one know how I can remedy this?
>>>>
>>>> Thanks.
>>>>
>>>> Richard
>>>>
>>>>
>>>>
>>>> 2010/3/4 Mark Grimes <mgrimes at cpan.org>
>>>>
>>>>  There are better ways of dealing with this (forking, one of the IPC
>>>>>
>>>>> modules, etc), but these are a quick and dirty way to do what you
>>>>> want:
>>>>>
>>>>>  perl -e'system(q{sh -c "( xlogo & ) ; xlogo "});'
>>>>>  perl -e'system(q{ ( xlogo & ) ; xlogo });'
>>>>>
>>>>> (Replacing the xlogo commands with evice and terminal, of course.)
>>>>>
>>>>>
>>>>> 2010/3/4 Richard Reina <gatorreina at gmail.com>:
>>>>>
>>>>>> I use evince to view a good number of tiff files.  I have written a
>>>>>>
>>>>> quick
>>>>>
>>>>>> little script to help me associate the tiff files with various
>>>>>> database
>>>>>> records.  This script runs as part of larger API that runs in a very
>>>>>>
>>>>> minimal
>>>>>
>>>>>> xwindows system ( no desktop just twm as a window manager.) As it
>>>>>>
>>>>> stands now
>>>>>
>>>>>> I view the file with system("evince file.tiff"); close evince and
>>>>>>
>>>>> execute
>>>>>
>>>>>> the script which helps me associate and save the file.  I was
>>>>>> wondering
>>>>>>
>>>>> if
>>>>>
>>>>>> there is a way to for my script to open a terminal while evince is
>>>>>>
>>>>> still
>>>>>
>>>>>> open so I can still look at the file while I'm saving it.
>>>>>>
>>>>>> I've tried system("evince file.tiff & gnome-teminal
>>>>>>
>>>>> --geometry=50x35-0+0");
>>>>>
>>>>>> but then I don't see evince.
>>>>>>
>>>>>> Any help would be greatly appreciated.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Richard
>>>>>>
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