J'ai un dossier contenant pas mal de fichiers. Je souhaite afficher les éléments suivants:
filename_1
first line of file1
second line of file1
third line of file1
filename_2
first line of file2
second line of file2
third line of file2
filename_3
first line of file3
second line of file3
third line of file3
etc. Comment puis-je faire cela?