On Thursday 2012-07-26 12:10, Michal Marek wrote: >On 19.7.2012 23:49, Daniel Wisehart wrote: >> diff --git a/scripts/patch-kernel b/scripts/patch-kernel >> index d000ea3..a7672eb 100755 >> --- a/scripts/patch-kernel >> +++ b/scripts/patch-kernel >> @@ -226,7 +226,7 @@ fi >> >> # This all assumes a 2.6.x[.y] kernel tree. >> # Don't allow backwards/reverse patching. >> -if [ $STOPSUBLEVEL -lt $SUBLEVEL ]; then >> +if [ "$STOPSUBLEVEL"0 -lt "$SUBLEVEL"0 ]; then > >Hi Daniel, > >While this is correct, it is not obvious at first sight why you need to >multiply the numbers by 10. Or at least it was not obvious to me :).
Word has it some really old shells nobody would use to compile Linux on interpret "" not as an empty argument, but as a non-existing argument, turning if [ "" != "" ] into essentially if [ != ]. Doing x10 avoids the uncertainity whether shells might attempt to interpret it as octal or not. So far the interpretation.. >Could you use the more common idiom 0$NUMBER? The shell interprets the >numbers as decimal, so it's works fine. Wonder what POSIX says about that. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/