How to keep executed shell running after program exits

[tcak via Digitalmars-d-learn]

I have written a code to run gnuplot.

[code]
...
auto script = std.stdio.File("/tmp/waveletscript.gnuplot", "w");

script.writeln("set term wxt 1; plot '/tmp/wavelet1.dat';");
script.writeln("set term wxt 2; plot '/tmp/wavelet2.dat';");
script.writeln("set term wxt 3; plot '/tmp/wavelet3.dat';");

script.close();
std.process.executeShell("gnuplot /tmp/waveletscript.gnuplot");
...
[/code]

I can see that gnuplot creates windows and plots, but then it 
closes immediately. Anyway to execute the shell code in that way 
that it detaches from running process? I do not want window to be 
closing.

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BTW, as a tutorial to demonstrate use of gnuplot with D, is there 
any place I can write an article?