Dne 31.8.2011 21:03, Ulrich Mueller napsal(a): >>>>>> On Wed, 31 Aug 2011, Alec Warner wrote: >> Also it is my understanding that all tokens in $(()) go through >> expansion, so for instance: >> $(( 1024 * 1024 * size )) >> and >> $(( 1024 * 1024 * ${size})) are equivalent. >> Is this only in bash4? > It's like this since bash 2.05 at least. > >> Do we have a style preference? > Personally, I'd prefer the first variant. > > Ulrich > I thought it is mandatory to use the second variant, otherwise i preffer the first myself as it is from bash 2 or so :)
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