Display image from Graphviz without creating an intermediate file?

On OSX & iTerm2, you can do the following (assuming imgcat is installed)

dot abac.dot -Tpng | imgcat

enter image description here

With ImageMagick's display command, these work on Ubuntu 12.10 (and most likely other OSes, too):

dot abac.dot -Tsvg | display
dot abac.dot -Tpng | display

SVG has the advantage of smoothly scaling with the window (if that's what you want).

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