Cron jobs for scheduled tasks in Raspberry Pi - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to schedule a cron job that runs every minute.

Raspberry Pi

*/1 * * * * [1]

Drag options to blanks, or click blank then click option'

Arun script.py

B/usr/bin/python3 /home/pi/script.py

Cpython script.py

Dexecute script.py

Attempts:

3 left

💡 Hint

Common Mistakes

Using just 'python script.py' without full path causes cron to fail.

The cron job needs the full path to the Python interpreter and the script to run every minute.

2fill in blank

medium

Complete the cron schedule to run a job every day at 2:30 AM.

Raspberry Pi

30 [1] * * * /home/pi/backup.sh

Drag options to blanks, or click blank then click option'

A2

B14

C3

D0

Attempts:

3 left

💡 Hint

Common Mistakes

Using 14 instead of 2 runs at 2 PM, not 2 AM.

The hour field should be 2 for 2 AM in 24-hour format.

3fill in blank

hard

Fix the error in the cron job that should run every Sunday at midnight.

Raspberry Pi

0 0 * * [1] /home/pi/weekly_report.sh

Drag options to blanks, or click blank then click option'

A7

B0

CSun

D1

Attempts:

3 left

💡 Hint

Common Mistakes

Using 0 or 7 can be ambiguous depending on cron version.

Using 'Sun' is the correct way to specify Sunday in the day-of-week field for cron.

4fill in blank

hard

Fill both blanks to create a cron job that runs every 15 minutes and logs output.

Raspberry Pi

[1]/15 * * * * /home/pi/script.sh > [2] 2>&1

Drag options to blanks, or click blank then click option'

A*/

B/var/log/script.log

C/tmp/script.log

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Using '*' instead of '*/' causes the job to run every minute.

The '*/15' means every 15 minutes. Redirecting output to /tmp/script.log saves logs.

5fill in blank

hard

Fill all three blanks to create a cron job that runs at 5:45 PM on weekdays and emails output.

Raspberry Pi

[1] 45 17 [2] [3] /home/pi/daily_report.sh | mail -s "Report" [e-mail]

Drag options to blanks, or click blank then click option'

A1-5

B1,2,3,4,5

C1-7

D*

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing day of month and day of week fields.

The minute field is '*', day of month is '1-5' for weekdays, and day of week is '1,2,3,4,5' for Monday to Friday.