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What does touch report.txt do when report.txt already exists and contains data?

Que fait touch report.txt lorsque report.txt existe déjà et contient des données ?

Answers
AIt empties the file so that it becomes zero bytes long, keeping its nameElle vide le fichier pour qu'il ne fasse plus que zéro octet, en gardant son nom
BIt updates the file's timestamps without changing its contentsElle met à jour les horodatages du fichier sans modifier son contenu
CIt opens the file in a text editorElle ouvre le fichier dans un éditeur de texte
DIt shows an error because the file existsElle affiche une erreur car le fichier existe
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