On Sun, 14 May 2006, Eric Wong wrote: > > -u (lowercase) now accepts an optional arg, like -U (GNU diff > -u also has this behavior). Actually, modern GNU "diff -u5" will say diff: `-5' option is obsolete; use `-U 5' diff: Try `diff --help' for more information. and exit. I'm not entirely sure why, but I think it's because "u" can be mixed (ie with something like "-urN"), while "U" cannot. The GNU diff rule seems to be that simple arguments can be mixed together, but arguments with parameters cannot. Which sounds sane. Linus - : 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