Hi, On Wed, 12 Mar 2008, Jeff King wrote: > On Wed, Mar 12, 2008 at 08:43:36AM -0400, Jeff King wrote: > > > It seems that /usr/bin/tr silently removes NULs from the input stream: > > > > $ printf 'foo\000bar' | xxd > > 0000000: 666f 6f00 6261 72 foo.bar > > $ printf 'foo\000bar' | /usr/bin/tr '\000' 'Q' | xxd > > 0000000: 666f 6f62 6172 foobar > > > > I don't think there is an easy way around this; we might have to switch > > to using perl. > > Even more exciting, /usr/bin/tr actually works going the opposite > direction, but /usr/ucb/tr doesn't: > > $ echo x | /usr/bin/tr x '\000' | xxd > 0000000: 000a .. > $ echo x | /usr/ucb/tr x '\000' | xxd > 0000000: 780a x. > > but other characters seem to work: > > $ echo x | /usr/ucb/tr x '\012' | xxd > 0000000: 0a0a .. All the more reson to make more things builtin. (I agree that for tests, we should stay with tr, though.) Ciao, Dscho -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
