Bird
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A user writes this cron line: 60 24 * * * /home/user/script.sh. What is wrong?

medium📝 Debug Q14 of 15
Linux CLI - Cron and Scheduling
A user writes this cron line: 60 24 * * * /home/user/script.sh. What is wrong?
AMinute value 60 is invalid; should be 0-59
BNothing is wrong; it will run daily at midnight
CHour value 24 is invalid; should be 0-23
DBoth minute and hour values are invalid
Step-by-Step Solution
Solution:

  1. Step 1: Check minute field validity

    Minute must be between 0 and 59; 60 is invalid.

  2. Step 2: Check hour field validity

    Hour must be between 0 and 23; 24 is invalid.

  3. Final Answer:

    Both minute and hour values are invalid -> Option D

  4. Quick Check:

    Minute=60 and Hour=24 invalid = Both minute and hour values are invalid [OK]
Quick Trick: Minutes 0-59, hours 0-23 only [OK]
Common Mistakes:
  • Thinking 60 minutes means next hour
  • Assuming 24 is valid hour for midnight
  • Ignoring cron field limits

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