diff --git a/btrbk.sh b/btrbk.sh
index 5f1451d..5f7788e 100755
--- a/btrbk.sh
+++ b/btrbk.sh
@@ -1,40 +1,56 @@
 #!/bin/bash
 
 source config.sh
-set -euo pipefail
 
 function main {
     date=$(date +%Y-%m-%d)
     month=$(date +%B)
-    for i in ${!SUBVOLS[@]}
-        do
-            snapName=${VOLNAME[$i]}.$date
-            snapYest=$SNAPDIR${VOLNAME[$i]}.$(date -d "$date -1 day" +%Y-%m-%d)
+    for i in ${!SUBVOLS[@]}; do
+        snapName=${VOLNAME[$i]}.$date
+        snapYest=$SNAPDIR${VOLNAME[$i]}.$(date -d "$date -1 day" +%Y-%m-%d)
+        if [[ -d "$SNAPDIR$snapName" ]]; then
+            echo "backup already run today"
+            continue
+        else
             btrfs subvolume snapshot -r ${SUBVOLS[$i]} $SNAPDIR$snapName
-            if [[ -d "$snapYest" && $bkType = "daily" && $? -ne 0 ]]
-                then
-                    btrfs send -p $snapYest $SNAPDIR$snapName | gpg --batch -er $PUBKEY -o - | rclone rcat $RCLONEDIR$month/$snapName.pgp
-                else
-                    btrfs send $SNAPDIR$snapName | gpg --batch -er $PUBKEY -o - | rclone rcat $RCLONEDIR$snapName.pgp
-            fi
-            if [[ $bktype = monthly ]]
-                then
-                    for f in `seq 1 2`
-                        do
-                            btrfs subvolume delete $SNAPDIR${VOLNAME[$i]}.$(date -d "$date -$f day" +%Y-%m-%d)
-                    done
-                    rclone delete $RCLONEDIR$(date -d "$month -1 month" +%B)/
-                else
-                    btrfs subvolume delete $SNAPDIR${VOLNAME[$i]}.$(date -d "$date -2 day" +%Y-%m-%d)
-            fi
+        fi
+        if [[ -d "$snapYest" && $bkType = "daily" && $? = 0 ]]; then
+            btrfs send -p $snapYest $SNAPDIR$snapName | gpg --batch -er $PUBKEY -o - | rclone rcat $RCLONEDIR$month/$snapName.pgp
+        else
+            btrfs send $SNAPDIR$snapName | gpg --batch -er $PUBKEY -o - | rclone rcat $RCLONEDIR$snapName.pgp
+        fi
+
+        if [[ $bktype = monthly && "rclone ls $RCLONEDIR$(date -d "$month -1" +B%)" ]]; then
+            for f in `seq 1 2`; do
+                btrfs subvolume delete $SNAPDIR${VOLNAME[$i]}.$(date -d "$date -$f day" +%Y-%m-%d)
+            done
+            rclone delete $RCLONEDIR$(date -d "$month -1 month" +%B)/
+        else
+            btrfs subvolume delete $SNAPDIR${VOLNAME[$i]}.$(date -d "$date -2 day" +%Y-%m-%d)
+        fi
     done
 }
 
-if [ `date +%d` != "01" ]
-    then
+rclone ls $RCLONEDIR > /dev/null 2>&1
+if [[ $? = 0 ]]; then
+    gpg --list-key $PUBKEY > /dev/null 2>&1
+    if [[ $? = 0 ]]; then
+        testDate
+    else 
+        echo "pubkey wrong or not found exit code: $?"
+        exit
+    fi
+else
+    echo "rclone dir wrong or not found exit code: $?"
+    exit
+fi
+
+function testDate {
+    if [ `date +%d` != "01" ]; then
         bkType=daily
         main
     else
         bkType=monthly
         main
-fi
+    fi
+}