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 $x > > two spaces > > > > Maybe we should quote a little bit more religiously. > > Both of you are wrong ;-) > > Of course, the lack of dq around echo's argument makes shell split > two and spaces into two args and feed them separately to echo, and > causes echo to show them with a single SP in between. Peff's > exampel should have been > > BAR=$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. -Peff
