Most Linux jobs fall into two categories: Linux programming and systems management. Some of the work gained using Linux as an operating system are network engineers, network technicians, and system administrators. The company looks for in your resume is the credential that varies greatly depending on region, position, and even company. Some companies hire applicants who are not experienced or qualified, but those who have actual experience and knowledge are more common.
If you were in the IT world for the past 20 years, you may have to deal with some type of job scheduler. The most popular and widely used unix / linux job scheduler is Cron. Cron jobs are a highly reliable way to automate tasks and run scripts on a regular basis. On a traditional Unix / Linux system simply run crontab -e and pop up * * * * * bash /path/to/script.sh or drag and drop the file to /etc/cron.d. However, with the advent of Docker and Kubernetes, it is not easy to set up cron jobs. This article details my experience with Cron and is meant to provide some examples of how to automate tasks with Docker and Kubernetes.
Linux is a modular Unix-like operating system. Most of its basic design derives from the principles established in Unix in the 1970s and 1980s. Linux uses a single chip kernel to handle process control, network and access to peripheral devices and file systems. Device drivers are directly integrated with the kernel. Many of the more advanced Linux features are provided by separate projects connected to the kernel. GNU user space is an important part of most Linux systems and provides shell and Unix tools to perform many basic operating system tasks. On the kernel, these tools form a Linux system with an usable GUI, usually run on X Windows system (X).
Linux follows the remarkable function, and does not unify the development process. You can not learn Linux completely. The Linux kernel is the foundation of the operating system that is developed and maintained by the Linux Foundation, and it is the most contributing, involving many community volunteers around the world. The Linux distribution is what we consider as a normal Linux operating system. Around the world, many companies and volunteers are building desktop environments, software, and hardware drivers for creating these Linux distributions through the core kernel.