Batch jobs are computer programs that run at scheduled intervals, often used for maintenance tasks. UNIX® uses the cron task manager, while Windows® uses the task scheduler. Linux® uses “At” and “Batch” commands. Recurring batch jobs require complex scheduling. They should be performed during off-peak hours to ensure system resources are available. Sophisticated scheduling programs can handle resource overload.
A batch job is a computer program that runs at scheduled intervals. The best way to schedule a batch job is to link the job to your computer’s task management system. This varies for each operating system (OS) and is typically used for maintenance type tasks.
The best way to run batch jobs in a UNIX® based operating system is to use the cron task manager. Cron is the default job scheduling program within UNIX®. This program allows for the scheduling of a batch job at specific times.
Windows® operating systems typically use the task scheduler to run batch jobs. This program has several configuration options, which include time and date settings for each job to be performed. The task scheduler is the primary tool used in Windows® for scheduling a batch job.
Both Windows® and UNIX® operating systems have a special administrative screen that handles scheduling a batch job. You can access these programs from the operating system administration console. Provides an easy-to-use scheduler that lists all jobs scheduled in the operating system.
Linux® operating systems use both the “At” and “Batch” commands as a tool for scheduling a batch job. These commands allow the user to specify a particular date and time to run the batch program. The main difference between these two commands is that the “Batch” command is designed to run work as soon as system resources are available, while the “At” command is based on a specific time.
Scheduling a batch job to run on a recurring basis requires a more complex scheduler than standard batch jobs. Using cron and task scheduling programs, a developer can write scripts that run daily. These programs are unique to the operating system and are checked every minute throughout the day.
Batch programs are typically used for maintenance operations, including daily backups and disk cleanup utilities. These maintenance schedules are best performed during off-peak hours, when the system is idle and network traffic is low. Scheduling a batch job to run during the early morning or late evening ensures that computer system resources will be available during peak business hours.
Most batch jobs run for several hours. These programs require high-speed processing power and typically use additional computer resources. Many sophisticated scheduling programs can run batch jobs with the resources available within your computer. Once the resources have been overloaded, the batch job will be held until more processing power is available.
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