diff --git a/src/imrsrsv.py b/src/imrsrsv.py
index 5f19bcc..4295106 100644
--- a/src/imrsrsv.py
+++ b/src/imrsrsv.py
@@ -149,7 +149,9 @@ def process_date(self, d):
             try:
                 with open(date_tmp, "wt") as F:
                     for s in this_slice:
-                        F.write(join(self.cbor_instance, s) + "\n")
+                        s_file = join(self.cbor_instance, s)
+                        if os.path.getsize(s_file) > 0:
+                            F.write(s_file + "\n")
                 merge_cmp = self.cmd + ' -I ' + date_result + " " + date_tmp
                 cmd_ret = os.system(merge_cmp)
                 if cmd_ret == 0:
diff --git a/src/ipstats.sh b/src/ipstats.sh
index 21363bf..1c6f80c 100644
--- a/src/ipstats.sh
+++ b/src/ipstats.sh
@@ -5,6 +5,8 @@ IPSTATS_DIR="$HOME/ipstats"
 IMRS_CBOR=/data/ITHI/cbor/IMRS/
 MONTH=202403
 SCRIPT="$HOME/ithitools/src/imrsrsv.py"
+RUN_DATE=$(date '%(%Y-%m-%d)T\n')
+RUN_LOG=`tmp/$RUN_DATE.$$.txt`
 
 echo "Home: $HOME"
 echo "ithitools: $ITHITOOLS"
@@ -12,5 +14,6 @@ echo "ipstats: $IPSTATS_DIR"
 echo "imrs: $IMRS_CBOR"
 echo "Month: $MONTH"
 echo "Script: $SCRIPT"
+echo "Log: $RUN_LOG"
 
-python3.6 $SCRIPT $IMRS_CBOR $IPSTATS_DIR $MONTH $ITHITOOLS
+python3.6 $SCRIPT $IMRS_CBOR $IPSTATS_DIR $MONTH $ITHITOOLS > $RUN_LOG