Ah! A Klingon programmer!
You would rather have your minions die then return in failure... Well, we can oblige...
You're looking for Perl6::Builtins, which you can use as follows:
use Perl6::Builtins qw( system );
or croak "Couldn't run: $cmd ($OS_ERROR)";
Example was taken from TheDamian's Perl Best Practices.
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