On Tuesday 02 February 2010 22:11:29 Benjamin R. Haskell wrote: > I think Joke de Buhr meant (paraphrasing) "What is this syntax exactly?" > > See 'man zshall', heading 'ARITHMETIC EVALUATION', second paragraph. > It's treated as an arithmetic expression, and the return value is true > if non-zero. Thanks. I knew ((...)) was an alternative to using let but I didn't knew let could be used in other ways than assigning an arithmetic expression to a variable: let 'a = 1 + 2 + 3' or let 'b = 2 + 3.4 + 5 > 6' Since I didn't know it could be used without assignment I would have guessed the correct way would be: let 'result = 2.5 + 2.75 > 5'; [[ $result -gt 0 ]] && print bigger or [[ $((2.5 + 2.75 > 5)) -gt 0 ]] && print bigger I guess I didn't try to do that much mathematical operations within a shell.
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