add bash script to Jenkinsfile

Jenkinsfile

@@ -1,25 +1,11 @@
 node {
-    stage('Preparation') {
-        properties([
-            parameters([
-                string(
-                    defaultValue: 'Hello World!',
-                    description: 'Tekst do wyświetlenie',
-                    name: 'INPUT_TEXT',
-                    trim: false
-                )
-            ])
-        ])
+    stage('Download data') {
+        checkout scmGit(branches: [[name: '*/master']], extensions: [], userRemoteConfigs: [[url: 'https://git.wmi.amu.edu.pl/s452662/ium_452662']])
     }
-    stage('Hello') {
-        //Wypisz wartość parametru w konsoli (To nie jest polecenie bash, tylko groovy!)
-        echo "INPUT_TEXT: ${INPUT_TEXT}"
-        //Wywołaj w konsoli komendę "figlet", która generuje ASCI-art
-        sh "figlet \"${INPUT_TEXT}\" | tee output.txt"
+    stage('Cut data') {
+        sh '''kaggle datasets download -d aleksandrglotov/car-prices-poland unzip -o car-prices-poland.zip wc -l Car_Prices_Poland_Kaggle.csv head -n 11793 Car_Prices_Poland_Kaggle.csv > cars_test.csv head -n 23586 Car_Prices_Poland_Kaggle.csv  | tail -11793 > cars_dev.csv tail -n 1037740 Car_Prices_Poland_Kaggle.csv > cars_train.csv'''
     }
-    stage('Goodbye') {
-        echo 'Goodbye!'
-        //Zarchiwizuj wynik
-        archiveArtifacts 'output.txt'
+    stage('Save data into artifacts') {
+        archiveArtifacts artifacts: '*.csv', followSymlinks: false
     }
 }