Re: [Gnuplot-info] how to tell gnuplot version and other things from a script

[Thomas S. <t.s...@fz...>]

version strings are written to stderr (except for 'gnuplot -V'),
that's one of the problems.

something that should work on all platforms and versions:
echo save \"filename\" | gnuplot
and then read the file in and parse it.


Mark Seger wrote:
> 
> I guess my problem is I started with 3.7 and those commands definitely do
> NOT work:
> 
> [root@cag-dl585-02 gnuplot-3.7.3]# gnuplot -v
>          Cannot open load file '-v'
>          line 0: (No such file or directory)
> 
> [root@cag-dl585-02 gnuplot-3.7.3]# gnuplot -V
>          Cannot open load file '-V'
>          line 0: (No such file or directory)
> 
> [root@cag-dl585-02 gnuplot-3.7.3]# gnuplot --version
>          Cannot open load file '--version'
>          line 0: (No such file or directory)
> 
> while the following does:
> 
> [root@cag-dl585-02 gnuplot-3.7.3]# echo show version | gnuplot
> 
>         G N U P L O T
>         Version 3.7 patchlevel 3
>         last modified Thu Dec 12 13:00:00 GMT 2002
>         System: Linux 2.6.18-92.el5
> 
> I also tried those commands on a windows platform with 4.2 and they don't
> work there either.  I don't get an error message and I see something
> flicker as if it tried to start and then exited, but no terminal output:
> 
> C:\Users\mjs>\bin\gnuplot\bin\wgnuplot.exe -V
> 
> C:\Users\mjs>
> 
> As I said, I'm looking for something that works on all versions, at least
> since 3.7
> 
> -mark
> 
> 
> 
>>-----Original Message-----
>>From: Thomas Sefzick [mailto:t.s...@fz...]
>>Sent: Friday, July 03, 2009 11:04 AM
>>To: gnu...@li...
>>Subject: Re: [Gnuplot-info] how to tell gnuplot version and other things
>>from a script
>>
>>
>>should work on all platforms:
>>gnuplot --version
>>gnuplot -V
>>
>>
>>Mark Seger wrote:
>>>
>>> I've been playing around a little more with different versions and it
>>> looks like this problem is with 4.2.0 but 4.2.1 forward seems to be
>>ok.
>>> However I am still interested in finding out if there is a way to tell
>>> tell a gnuplot version from a script on a windows platform.
>>> -mark
>>>
>>>>-----Original Message-----
>>>>From: Seger, Mark
>>>>Sent: Friday, July 03, 2009 8:33 AM
>>>>To: gnu...@li...
>>>>Subject: how to tell gnuplot version and other things from a script
>>>>
>>>>I have a script that uses gnuplot to do its plotting and needs to be
>>>>able to run with different versions.  It runs primarily in a linux
>>>>environment but occasionally on windows too.  In the case of windows I
>>>>have not been able to figure out the gnuplot version but on linux
>>>>discovered I could:
>>>>
>>>>echo show version | gnuplot
>>>>
>>>>and parse the output.  But I just tried this with gnuplot V4.2 and
>>>>discovered that while it works, I get a warning that it can't open the
>>X
>>>>display and this causes my script to hang for a long time and is not
>>the
>>>>behavior on earlier versions and doesn't seem to make sense anyway
>>since
>>>>not everyone runs gnuplot on X terminals.
>>>>
>>>>The second thing I'm trying to do is determine the size font a png
>>>>terminal will use and I found I could do this with:
>>>>
>>>>(echo set terminal png; echo show terminal) | gnuplot
>>>>
>>>>but again I get that X11 warning.
>>>>
>>>>Finally, even if my terminal type is X, if I run the commands from a
>>>>script they hang for awhile but work fine on earlier versions.
>>>>
>>>>That said, my question(s) come down to:
>>>>
>>>>what is the best/most efficient way to get the gnuplot versions and
>>png
>>>>font sizes from a script?
>>>>less important but still something that would be nice is to have a way
>>>>to do this in a windows environment.
>>>>
>>>>-mark
>>>>
>>>
>>>
>>> ----------------------------------------------------------------------
>>--------
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>>> Gnu...@li...
>>> https://lists.sourceforge.net/lists/listinfo/gnuplot-info
>>>
>>>
>>
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>>gnuplot-version-and-other-things-from-a-script-tp24324088p24324596.html
>>Sent from the Gnuplot - User mailing list archive at Nabble.com.
>>
>>
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