Which of the following crontab entries will execute myscript at 30 minutes past every hour on Sundays?
A.
0 * * * 30 myscript
B.
30 * * * 6 myscript
C.
30 0 * * 0 myscript
D.
30 0-23 * * 0 myscript
E.
0 0-23 * * 30 myscript
題解
crontab的欄位分別是分鐘、小時、日期、月份、星期、指令。選項D是正確答案。