How to save a graph through command line with Gnuplot?

Question

gnuplot -p -e "plot [-4:4] exp(-x**2 / 2); set terminal png size 400,300; set output 'xyz.png'"

That's what I have tried. It does create the png, but corrupted.

Where am I going wrong?

Christoph · Accepted Answer · 2015-04-14 11:14:05Z

32

You must set the terminal and the output file name before plotting:

gnuplot -e "set terminal png size 400,300; set output 'xyz.png'; plot [-4:4] exp(-x**2 / 2)"

In that case you also don't need the persist flag.

answered Apr 14, 2015 at 11:14

Christoph

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2 Comments

SDsolar Over a year ago

Ah. semicolons instead of \n - I see how this works.

tommy.carstensen Over a year ago

Is it possible to have all of the commands in a script and just pass the output filename from the command line? I haven't used gnuplot for years and can't remember. Thanks!

jmmo · Accepted Answer · 2015-04-14 11:13:55Z

3

The order of your commands. First set the terminal. Then set the output. Finally plot.

answered Apr 14, 2015 at 11:13

jmmo

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