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# check that first assignment has proper effect on second one ( a=a A=$a echo a=$a A=$A ) (a=a A=$a; echo a=$a A=$A) (a=a A=$a echo a=$a A=$A) (a=a A=$a /bin/echo a=$a A=$A) f() { echo a=$a A=$A; } (a=a A=$a f) (a=a A=$a; f)