crontab and at

CompTIA Linux+ Domain:

Domain 2.0: Systems Operations and Maintenance

CompTIA Linux+ Objective:

Objective 2.6: Given a scenario, automate and schedule jobs.

    Overview

    This lab provides guidance on performing Lab 7: crontab and at of the Linux+. By performing this lab, students will learn how to schedule processes to execute in the future using the at and crontab commands.

    OUTCOMES:

     

    In this lab, you will learn to:

    1. Learn how to schedule future tasks with the at command.
    2. Limit access to the at command.
    3. Learn how to schedule future recurring tasks with the crontab command.
    4. Limit access to the crontab command.
    5. Manage system crontabs.
    Courses

    Key terms and descriptions

    crontab
    Schedules commands execution at Specified time or time interval.
    cron
    The software utility cron is a time-based job scheduler in Linux-like computer operating systems. Users that set up and maintain software environments use cron to schedule jobs to run periodically at fixed times, dates, or intervals.
    at
    Execute commands at a specified time and optional date. The commands are read from standard input or from a file.