On Mon, 2004-07-26 at 11:08, Robert P. J. Day wrote: > it's short for "command substitution", which runs the command > contained with the ` quotes and produces what's printed to standard > output. *very* different from the regular single quotes -- you *bet* > they're not interchangeable. > > to avoid confusion, you can also identify command substitution with > the syntax $(... command ...), which i personally prefer, since it's > much clearer. that is, you'd be better off writing: > > c=$(expr ... ') > > at least, in my opinion. > Outstanding. Thank you very much.
