bash_manip-0-setup.md

To do this exercice you will use data of first names given to children born in France since 1900 downloaded from "Institut national de la statistique et des études économiques" (see [here](https://www.insee.fr/fr/statistiques/8205621?sommaire=8205628) for details).

```bash
wget https://www.insee.fr/fr/statistiques/fichier/2540004/nat2021_csv.zip
unzip nat2021_csv.zip 
```

You should now have a file called `nat2021.csv` in your working directory.

The data contained in this file have this shape:
```
sexe;preusuel;annais;nombre
2;SANDRINE;1973;17605
1;JEAN;1960;17607
1;_PRENOMS_RARES;1904;1430
```

The first line is the header where `preusuel` means `prenom usuel` and `annais` means `année naissance`.  
The subsequent lines are the data.  
1 in column sex means male and 2 means female.
`_PRENOMS_RARES` are rare first names. They are classified as rare following criteria described [here](https://www.insee.fr/fr/statistiques/8205621?sommaire=8205628#documentation).