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A crontab entry reads 30 2 * * 1-5 /usr/local/bin/backup.sh. When does the backup run?

Une entrée de crontab indique 30 2 * * 1-5 /usr/local/bin/backup.sh. Quand la sauvegarde s'exécute-t-elle ?

Answers
AAt 02:30, Monday to FridayÀ 2 h 30, du lundi au vendredi
BAt 30 minutes past every hour, on the 2nd of each monthÀ la trentième minute de chaque heure, le 2 de chaque mois
CEvery 30 seconds for 2 hoursToutes les 30 secondes pendant 2 heures
DAt 14:30 on weekends onlyÀ 14 h 30, uniquement le week-end
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