015 - Linux Boot Process Step By Step | Different Types Of Init Programs | Manage Processes And Jobs
0:18 Quick look at the boot process
1:20 Talk about sysvinit, upstart and systemd "init" programs
8:45 How processes are created
11:08 Fork and Exec with example
17:24 Killing processes
20:06 Manage jobs (run jobs in the foreground and the background, suspend jobs and kill jobs)
In this video, we will look into the various steps of boot process in #Linux system. During the boot process, kernel initializes the central system process, known as #init process, which is responsible for managing all other child processes in user space. We will then discuss different types of init programs that were being used in the past as well as in the latest Linux distributions. Most of the current Linux distros use #systemd as their system initialization process and we will check how services are managed in #systemd environment.
There are different ways of creating processes but fork and exec are commonly used functions in Linux system. We will discuss about fork and exec concept with examples and see how processes are created in Linux Operating Systems. We will also see different types of kill signals to terminate the process, and finally, we will look into the jobs and discuss how to manage jobs in the background or bring them into the foreground and also learn to kill them when necessary.
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