exit ststus 9 from perl system command

HI all,

can anyone tell me what does exit status 9 from perl's system function meant.

I am using system fuction to execute a shell script as :

my $s=system ('script.sh' ,arg1 ,arg2);

print $s;

the output is 9.

Thanks in advance. !!:confused:

Quoth perldoc -f system: