Random Delay Cronjob Execution

Sometime there are many jobs to be executed at the same time (e.g. 12 AM daily), and it posed heavy load on the host. If the jobs are not time-sensitive, random-time delay can be introduced to mitigate such issue.

0    0    *    *    *    sleep $((RANDOM % 3600)); /the/execution/script.sh

RANDOM is a bash built-in variable that generates a random integer. RANDOM % 3600 generates a random integer between 0 and 3600 (exclusive). 3600 seconds is equivalent to 1 hour, you can adjust this number to suit your need. The sleep command creates delay in the specified number of seconds.