On Thu, 14 Oct 2004 00:40:23 +0900, Lionel Thiry <lthiry / skynet.be> wrote: > Hi! > > I'd like to make some kind of substitution like in a shell, i.e. having: > "${tool} -o ${target} -L${libpath} -l${lib} ${source}" What's the full context of this? In Ruby, you can interpolate into strings using "the #{code} part will be replaced with whatever 'code' returns", so "5*5 is #{5*5}" becomes "5*5 is 25". However, because I don't really know your context, I don't know if this can solve your problem. If it can't, please give more contextual details. Eivind.