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anacron is a computer program that performs periodic command scheduling, which is traditionally done by cron, but without assuming that the system is running continuously.. Thus, it can be used to control the execution of daily, weekly, and monthly jobs (or anything with a period of n days) on systems that don't run 24 hours a
The cron in Version 7 Unix was a system service (later called a daemon) invoked from /etc/rc when the operating system entered multi-user mode. [10] Its algorithm was straightforward: Read /usr/lib/crontab [11] Determine if any commands must run at the current date and time, and if so, run them as the superuser, root. Sleep for one minute
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
Quartz is a job scheduling library that can be integrated into a wide variety of Java applications. [ 1 ] Quartz is generally used for enterprise class applications to support process workflow, system management (maintenance) actions and to provide timely services within the applications.
This is a list of notable job scheduler software.Job scheduling applications are designed to carry out repetitive tasks as defined in a schedule based upon calendar and event conditions.
GNU Midnight Commander (also known as mc, the command used to start it, and as mouseless commander in older versions [4]) is a free cross-platform orthodox file manager. [5] It was started by Miguel de Icaza in 1994 [ 1 ] as a clone of the then-popular Norton Commander .
Crystal oscillators can be manufactured for oscillation over a wide range of frequencies, from a few kilohertz up to several hundred megahertz.Many applications call for a crystal oscillator frequency conveniently related to some other desired frequency, so hundreds of standard crystal frequencies are made in large quantities and stocked by electronics distributors.
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]