You can dup stdout and stderr, then close them: 
sub stfu_system
{
    local (*OUT, *ERR);
    open OUT, ">&STDOUT";
    open ERR, ">&STDERR";
    close STDOUT;
    close STDERR;
    system @_;
    open STDOUT, ">&OUT";
    open STDERR, ">&ERR";
}

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In reply to Re: Disable output from system by educated_foo
in thread Disable output from system by ewhitt

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