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These two files play an important role: /etc/cron.allow – If this file exists, it must contain the user's name for that user to be allowed to use cron jobs. /etc/cron.deny – If the cron.allow file does not exist but the /etc/cron.deny file does exist then, to use cron jobs, users must not be listed in the /etc/cron.deny file.
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; run jobs at fcron's startup if they should have been run during system down time; mail user to tell them a job has not run and why; run fcron by scripts; run several instances of fcron simultaneously
This file lists all currently mounted filesystems along with their initialization options. mtab has a lot in common with fstab, the distinction being that the latter is a configuration file listing which available filesystems should be mounted on which mount points at boot time, whereas the former lists currently mounted ones, which can include manually mounted ones not listed in fstab.
Content, format, and security of password and group files (e.g., passwd) Programs and files run in /etc/rc* and cron(tab) files; Root-SUID files: Which users can modify them? Are they shell scripts? A cyclic redundancy check of important files; Writability of users' home directories and startup files; Anonymous FTP configuration
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]
The intermediate stage loader (stage1.5, usually core.img) is loaded and executed by the stage1 loader. The second-stage loader (stage2, the /boot/grub/ files) is loaded by the stage1.5 and displays the GRUB startup menu that allows the user to choose an operating system or examine and edit startup parameters.
In addition to the graphical user interface for Windows Task Scheduler in Control Panel, Windows provides an at.exe command that schedules commands and programs to run on a computer at a specified time and date (similar to cron). It is available since Windows NT, but is now deprecated in favor of schtasks.
Across Unix-like operating systems many different configuration-file formats exist, with each application or service potentially having a unique format, but there is a strong tradition of them being in human-editable plain text, and a simple key–value pair format is common.