A QX with an exitcode

myqx.md

# Shamelessly nabbed from https://github.com/rakudo/rakudo/blob/master/src/core.c/Proc.pm6#L261-L265
sub myqx ($cmd, :$cwd = $*CWD, :$env) {
  my $proc := Proc.new(:out);
  $proc.shell($cmd, :$cwd, :$env);
 
  (
    $proc.out.slurp(:close) // Failure.new("Unable to read from '$cmd'"),
    $proc.exitcode
  )
}