You want to collect sensor data every 10 minutes and save it to a database. Which cron entry correctly schedules this, assuming the script is at /home/pi/data_collect.sh?

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Raspberry Pi - Data Logging and Databases

You want to collect sensor data every 10 minutes and save it to a database. Which cron entry correctly schedules this, assuming the script is at /home/pi/data_collect.sh?

A0 */10 * * * /home/pi/data_collect.sh

B*/10 * * * * /home/pi/data_collect.sh

C10 * * * * /home/pi/data_collect.sh

D*/10 */10 * * * /home/pi/data_collect.sh

Step-by-Step Solution

Solution:

Step 1: Understand scheduling every 10 minutes
"*/10" in the minute field means every 10 minutes.
Step 2: Check other fields
"*" in hour and other fields means every hour, day, etc., which is correct.
Final Answer:
*/10 * * * * /home/pi/data_collect.sh -> Option B
Quick Check:
*/10 in minutes = every 10 minutes [OK]

Quick Trick: */10 in minutes runs every 10 minutes [OK]

Common Mistakes:

MISTAKES

Using 10 in minute field (runs once at 10th minute)
Misplacing */10 in hour field
Using double */10 in minute and hour

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More Raspberry Pi Quizzes

You want to collect sensor data every 10 minutes and save it to a database. Which cron entry correctly schedules this, assuming the script is at /home/pi/data_collect.sh?

Step 1: Understand scheduling every 10 minutes

Step 2: Check other fields

Final Answer:

Quick Check:

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