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System Administration Guide: Advanced Administration     Oracle Solaris 10 8/11 Information Library
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Document Information

About This Book

1.  Managing Terminals and Modems (Overview)

2.  Setting Up Terminals and Modems (Tasks)

3.  Managing Serial Ports With the Service Access Facility (Tasks)

4.  Managing System Resources (Overview)

5.  Displaying and Changing System Information (Tasks)

6.  Managing Disk Use (Tasks)

7.  Managing UFS Quotas (Tasks)

8.  Scheduling System Tasks (Tasks)

Creating and Editing crontab Files (Task Map)

Ways to Automatically Execute System Tasks

For Scheduling Repetitive Jobs: crontab

For Scheduling a Single Job: at

Scheduling a Repetitive System Task (cron)

Inside a crontab File

How the cron Daemon Handles Scheduling

Syntax of crontab File Entries

Creating and Editing crontab Files

How to Create or Edit a crontab File

How to Verify That a crontab File Exists

Displaying crontab Files

How to Display a crontab File

Removing crontab Files

How to Remove a crontab File

Controlling Access to the crontab Command

How to Deny crontab Command Access

How to Limit crontab Command Access to Specified Users

How to Verify Limited crontab Command Access

Using the at Command (Task Map)

Scheduling a Single System Task (at)

Description of the at Command

Controlling Access to the at Command

How to Create an at Job

How to Display the at Queue

How to Verify an at Job

How to Display at Jobs

How to Remove at Jobs

How to Deny Access to the at Command

How to Verify That at Command Access Is Denied

9.  Managing System Accounting (Tasks)

10.  System Accounting (Reference)

11.  Managing System Performance (Overview)

12.  Managing System Processes (Tasks)

13.  Monitoring System Performance (Tasks)

14.  Troubleshooting Software Problems (Overview)

15.  Managing System Messages

16.  Managing Core Files (Tasks)

17.  Managing System Crash Information (Tasks)

18.  Troubleshooting Miscellaneous Software Problems (Tasks)

19.  Troubleshooting File Access Problems (Tasks)

20.  Resolving UFS File System Inconsistencies (Tasks)

21.  Troubleshooting Software Package Problems (Tasks)

Index

Using the at Command (Task Map)

Task
Description
For Instructions
Create an at job.

Use the atcommand to do the following:

  • Start the at utility from the command line.
  • Type the commands or scripts that you want to execute, one per line.

  • Exit the at utility and save the job.

Display the at queue.
User the atq command to display the at queue.
Verify an at job.
Use the atq command to confirm that at jobs that belong to a specific user have been submitted to the queue.
Display at jobs.
Use the at -l [job-id] command to display at jobs that have been submitted to the queue.
Remove at jobs.
Use the at -r [job-id] command to remove at jobs from the queue.
Deny access to the at command.
To deny users access to the atcommand, edit the /etc/cron.d/at.deny file.