add: case 'q': Quiet = true; break;
context: int main(int argc, char **argv) {   const char *me = (const char *)basename(argv[0]);   bool SwitchesAllowed = true;   bool WriteMode = false;   int ReturnCode = 0;   const char *preloadfile = DEFAULT_PRELOAD;   PrintName = true;   PrintNewline = true;   IgnoreError = false;   if (argc < 2) {       return Usage(me);   }   argv++;   for (; argv && *argv && **argv; argv++) {      if (SwitchesAllowed && **argv == '-') {        /* we have a switch */         if ((*argv)[1] && (*argv)[2]){       // don't yet handle "sysctl -ew"              if (!strcmp("--help",*argv)) {                 Usage(me);                 exit(0);              }              if (!strcmp("--version",*argv)) {                 fprintf(stdout, "sysctl (%s)\n",procps_version);                 exit(0);              }              fprintf(stderr, ERR_UNKNOWN_PARAMETER, *argv);              return Usage(me);         }         switch((*argv)[1]) {         case 'b':              /* This is "binary" format, which means more for BSD. */              PrintNewline = false;           /* FALL THROUGH */         case 'n':              PrintName = false;           break;         case 'e':              IgnoreError = true;           break;         case 'w':              SwitchesAllowed = false;              WriteMode = true;           break;         case 'p':              argv++;              if (argv && *argv && **argv) {                 preloadfile = *argv;              }              return Preload(preloadfile);         case 'a': /* string and integer values (for Linux, all of them) */         case 'A': /* the above, including "opaques" (would be unprintable) */         case 'X': /* the above, with opaques completly printed in hex */              SwitchesAllowed = false;              return DisplayAll(PROC_PATH, ((*argv)[1] == 'a') ? false : true);         case 'V':              fprintf(stdout, "sysctl (%s)\n",procps_version);              exit(0);         case 'h':         case '?':              return Usage(me);         default:              fprintf(stderr, ERR_UNKNOWN_PARAMETER, *argv);              return Usage(me);         }      } else {         SwitchesAllowed = false;         if (WriteMode)            ReturnCode = WriteSetting(*argv);         else            ReturnCode = ReadSetting(*argv);      }   }   return ReturnCode;}