I wanted to also get the original rsync output in the Terminal, so I made a slightly different version, and used Perl rather than awk, because I know it better. In case someone finds it useful, here is the version I'm using.

<pre>
#!/usr/bin/perl
## Parse rsync –verbose –progress output for zenity

$|++;

while (<>) {
warn $_;
if ( m|^s+.*to-check=(d+)/(d+)| ) {
printf "%.0f
", 100 – (100 * $1 / $2);
}
else {
print "#$_";
}
}
</pre>

So my winxp wont touch my bad sector & i dont have to worry for system freeze or any risk on spreading the bad sector