Raspberry Pi - Data Logging and Databases
Which of the following is the correct syntax for a cron job that runs a script every day at 3 AM?
Which of the following is the correct syntax for a cron job that runs a script every day at 3 AM?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand cron time fields
Cron format is: minute hour day month weekday. To run at 3 AM, hour=3, minute=0.Step 2: Match correct syntax
0 3 * * * /home/pi/script.sh uses "0 3 * * *" which means 3:00 AM daily, correct syntax.Final Answer:
0 3 * * * /home/pi/script.sh -> Option CQuick Check:
Cron time format = minute hour day month weekday [OK]
Quick Trick: Minute first, then hour in cron syntax [OK]
Common Mistakes:
MISTAKES- Swapping hour and minute fields
- Using * incorrectly for hour
- Misplacing day and month fields
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