### Check if preexisting tar is appendable.
PATHOUT_APPENDTEST="$DIR_TMP"/"$(dateTimeShort)..append_test.txt" && vbm "DEBUG:Set PATHOUT_APPENDTEST to:$PATHOUT_APPENDTEST";
echo "$(dateTimeShort)" >> "$PATHOUT_APPENDTEST" && vbm "DEBUG:""$PATHOUT_APPENDTEST"" created."
### Check if preexisting tar is appendable.
PATHOUT_APPENDTEST="$DIR_TMP"/"$(dateTimeShort)..append_test.txt" && vbm "DEBUG:Set PATHOUT_APPENDTEST to:$PATHOUT_APPENDTEST";
echo "$(dateTimeShort)" >> "$PATHOUT_APPENDTEST" && vbm "DEBUG:""$PATHOUT_APPENDTEST"" created."