path: percona-toolkit_3.7.1-2/bin/pt-pmp
      # There are no files to analyze, so we'll make one.
      if [ -z "$OPT_PID" ]; then
         OPT_PID=$(pidof -s "$OPT_BINARY" 2>/dev/null);
         if [ -z "$OPT_PID" ]; then
            OPT_PID=$(pgrep -o -x "$OPT_BINARY" 2>/dev/null)