Hi Peff, On Thu, 28 Jun 2018, Jeff King wrote:
> On Thu, Jun 28, 2018 at 10:27:32AM -0700, Junio C Hamano wrote: > > > Johannes Schindelin <johannes.schinde...@gmx.de> writes: > > > > >> I.e.: > > >> > > >> FOO='with spaces' > > >> BAR=$FOO sh -c 'echo $BAR' > > >> > > >> works just fine. > > > > > > $ x="two spaces" > > > > > > $ echo $x > > > two spaces > > > > > > Maybe we should quote a little bit more religiously. > > > > Both of you are wrong ;-) Technically, you did not contradict anything I said. > > Of course, the lack of dq around echo's argument makes shell split > > two and spaces into two args and feed them separately to echo, and > > causes echo to show them with a single SP in between. Peff's > > exampel should have been > > > > BAR=$FOO sh -c 'echo "$BAR"' > > Yes, that's a better example. I was primarily trying to show that the > outer shell did not barf with "spaces: command not found". > > > But that does not have much to do with the primary point Peff was > > talking about, which is that in this sequence: > > > > $ x="two spaces" > > $ y="$x" > > $ z=$x > > $ echo "x=<$x>" "y=<$y>" "z=<$z>" > > > > assignment to y and z behave identically, i.e. dq around "$x" when > > assigning to y is not needed. > > I actually had to test it to convince myself that one-shot assignments > behaved the same way, but they do. The mere fact that you had to test it out to convince yourself suggests to me that my suspicion "Maybe we should quote a little bit more religiously" was 100% spot on. After all, almost *none* of the reviews on this mailing list involve anything like "testing it out". It happens in the mailing program, and it stays in the mailing program. Ciao, Dscho
