Ajout exo avec &&

docs/pages/bash/bash-extracting_from_files.md

@@ -97,6 +97,13 @@ The rare name ([see here for documentation](https://www.insee.fr/fr/statistiques
     ```
     People tends to provide more and more rare names.
 
+!!! question "Now, display the lines `_PRENOMS_RARES` in 2021 follow with the command `echo "this is the  number of rare firstnames in 2021 for boys and girls"` "
+
+??? example "Click to show the solution"  
+    ```bash
+    grep ";_PRENOMS_RARES;2021;" nat2021.csv && echo "this is the  number of rare firstnames in 2021 for boys and girls "
+    ```
+    
 
 ## Sorting a tabular file (sort)