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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