diff --git a/avocado-preprocessing.sh b/avocado-preprocessing.sh
index b74ccfb..872f9dd 100755
--- a/avocado-preprocessing.sh
+++ b/avocado-preprocessing.sh
@@ -3,8 +3,8 @@
 # pobranie zbioru danych
 kaggle datasets download -d timmate/avocado-prices-2020
 unzip -o avocado-prices-2020.zip
-TOTAL_SIZE= $(wc -l avocado-updated-2020.csv)
-echo size $TOTAL_SIZE
+TOTAL_SIZE=$(wc -l avocado-updated-2020.csv)
+echo "size $TOTAL_SIZE"
 
 # przetwarzanie pliku
 grep -P "^$" -n avocado-updated-2020.csv
@@ -16,8 +16,8 @@ head -n 1 avocado-updated-2020.csv > header.csv
 head -n -1 avocado-updated-2020.csv | shuf > avocado-updated-2020-shuf.csv
 
 head -n "$1" avocado-updated-2020-shuf.csv > avocado-2020.csv
-TRUNCATED_SIZE = $(wc -l avocado-2020.csv)
-echo truncated size $TRUNCATED_SIZE
+TRUNCATED_SIZE=$(wc -l avocado-2020.csv)
+echo "truncated size $TRUNCATED_SIZE"
 
 # podzial na train/dev/test 6/2/2
 head -n 6609 avocado-2020.csv > avocado-updated-2020-test.csv