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The cron command-line utility is a job scheduler on Unix-like operating systems.Users who set up and maintain software environments use cron to schedule jobs [1] (commands or shell scripts), also known as cron jobs, [2] [3] to run periodically at fixed times, dates, or intervals. [4]
webcron is the term for a time-based job scheduler hosted on a web server.The name derives its roots from the phrase web server and the Unix daemon cron.A webcron solution [buzzword] enables users to schedule jobs to run within the web server environment on a web host that does not offer a shell account or other means of scheduling jobs.
It aims to replace Vixie-cron and Anacron with a single integrated program, providing many features missing from the original Cron daemon. [3] Some of the supported options permit: [3] run jobs one by one; set the max system load average value under which the job should be run; set a nice value for a job
VisualCron is a replacement for the Windows Task Scheduler and a similar cron job scheduler in Unix-like operating systems. [1] The software is split into client and server parts, with the former being invoked by the user on demand and the latter always running as a process in the background. [1]
0x80041324: The Task Scheduler service attempted to run the task, but the task did not run due to one of the constraints in the task definition. 0x00041325: The Task Scheduler service has asked the task to run. 0x80041326: The task is disabled. 0x80041327: The task has properties that are not compatible with earlier versions of Windows.
Job Scheduling has a long history. Job Schedulers have been one of the major components of IT infrastructure since the early mainframe systems. At first, stacks of punched cards were processed one after the other, hence the term "batch processing". From a historical point of view, we can distinguish two main eras about Job Schedulers: The ...
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For clients, the main commands are srun (queue up an interactive job), sbatch (queue up a job), squeue (print the job queue) and scancel (remove a job from the queue). Jobs can be run in batch mode or interactive mode. For interactive mode, a compute node would start a shell, connects the client into it, and run the job.