Objectives
In this chapter you will learn
To use chrony to maintain accurate system time
To create a crontab file for root using the crontab command
To add necessary statements to the crontab file that set up the environment for cron jobs
To interpret the time specifications for cron and configure cron jobs to run at different recurring intervals
To create cron jobs using crontab
To create cron jobs for hourly, daily, weekly, and monthly periods
To use the at command to run scripts or commands once at a specific time in the future
Introduction
In previous chapters we have looked at some examples ...
