On Sat, 21 Mar 2015 16:28:47 -0700 David Bellows <davebell...@gmail.com> wrote:
> os.execute("lilypond example.ly &> lily.txt")
I don't know about lua, but standard shell syntax for this is
lilypond example.ly >lily.txt 2>&1 (Bourne family of shells)
lilypond example.ly >& lily.txt (C family of shells)
-- Johan
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