How does cron know the proper EUID to use when running commands in a user's crontab file? The /etc/crontab file? How can you force the cron daemon to update its crontable in memory? (hint: look at last week's lecture on signals and processes and find the signal that causes a daemon to reload its configuration)

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Linux

An operating system (OS) is the software which manages hardware and resources, like CPU, storage and memory. The OS bridges the applications and hardware and makes the connections between all of your software and the hardware resources.