diff --git a/tools/roundswitch/rsw.sh.c b/tools/roundswitch/rsw.sh.c
new file mode 100755
index 0000000..6363e1d
--- /dev/null
+++ b/tools/roundswitch/rsw.sh.c
@@ -0,0 +1,85 @@
+#!/usr/bin/tcc -run
+/*
+ * 
+ * ============================================================================
+ *
+ *       Filename:  rsw.sh.c
+ *
+ *    Description:  
+ *
+ *        Version:  1.0
+ *        Created:  14.12.2011 01:31:04
+ *       Revision:  none
+ *
+ *         Author:  john@tuxcode.org
+ *        Company:  tuxcode.org
+ *
+ * ============================================================================
+ */
+
+#include <stdio.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+
+
+#define DATAPATH "/home/john/tuxgit/pentagameshow/data/"
+#define ROUNDFOMAT DATAPATH "round_%d.json"
+#define ACTIROUND DATAPATH "questions.json"
+
+
+
+static void usage(){
+	puts(
+			"bitte gib die rundennummer as einzigeb aufrufparameter ein\n"
+			"die rundennummer ist eine Natürliche Zahl in ascii Darstellung\n"
+			"zwischen 1 und 5 \n"
+	    );
+	exit(1);
+}
+
+
+
+
+int
+main ( int argc, char *argv[] )
+{
+	long int i;
+	char *eptr;
+	char act[128];
+	if (argc != 2)
+		usage();
+	errno = 0;
+	i = strtol(argv[1],&eptr,0);
+	
+
+
+	if ((errno == ERANGE && (i == LONG_MAX || i == LONG_MIN))
+			|| (errno != 0 && i == 0)) {
+		perror("strtol");
+		exit(EXIT_FAILURE);
+	}
+
+	if (eptr == argv[1]) {
+		fprintf(stderr, "No digits were found\n");
+		exit(EXIT_FAILURE);
+	}
+	
+	if ((i <1) || (i>5)){
+		fprintf(stderr, "Round Number out of Range (1-5)\n");
+		exit(EXIT_FAILURE);
+	}
+
+	if (remove(ACTIROUND)){
+		fprintf(stderr, "Unable to remove old stufffz\n");
+	}
+
+	if (  6 > snprintf(act,128,ROUNDFOMAT,i)) {
+		fprintf(stderr, "wudurudu\n");
+		exit(EXIT_FAILURE);
+	}
+
+       symlink(act,ACTIROUND);
+	return 0;
+}				/* ----------  end of function main  ---------- */