{
  local @SIG{'INT', 'TERM'} = (sub {warn 'Interrupt!'}) x 2;
  `$cmd -P ALL $interval >> $path`;
}

##</code><code>##

{
  local @SIG{'INT', 'TERM'} = (sub {warn 'Interrupt!'}) x 2;
  `$cmd -P ALL $interval | timestamp.pl >> $path`;
}

##</code><code>##

Processing mpstat-5_EDT
Number of samples: 9

Processing iostat-5_EDT
Number of samples: 50

Processing vmstat-5_EDT
Number of samples: 0