TABLE OF CONTENTS Infrastructure Automation Why DevOps is Important? What is DevOps? As the name indicates:- Dev + Ops = Development + Operations. Development i) Backend Developers ii) Front-end Developers iii) QA Operations i) System admins ii) Network admins iii) Database admins The practice of operations and development engineers participating together in the entire service lifecycle through a pipeline from design through the development process to production support. This process is known as DevOps. This is a process of automating the whole infrastructure. Now here comes a query, what are we automating? We are automating the whole team's work from the code-building stage to code deployment. Scenario 1:- In a company, there is a project in which developers are writing the code and deploying it to the QA environment frequently for each sprint. This code is then tested by the testing team. Suppose there is a situation of mishap happens where the testing team used the older code
File Management in Linux TABLE OF CONTENTS In Linux, most of the operations are performed on files. And to handle these files Linux has directories also known as folders which are maintained in a tree-like structure. Though, these directories are also a type of file themselves. Linux has 3 types of files: Regular Files : It is the common file type in Linux. it includes files like – text files, images, binary files, etc. Such files can be created using the touch command. They consist of the majority of files in the Linux/UNIX system. The regular file contains ASCII or Human Readable text, executable program binaries, program data and much more. Directories : Windows call these directories as folders. These are the files that store the list of file names and the related information. The root directory(/) is the base of the system, /home/ is the default location for user’s home directories, /bin for Essential User Binaries, /boot – Static Boot Files, etc. We could create new directories
Linux It is an operating system first released on September 17, 1991, by Linus Torvalds. It comes from the family of Unix operating system which is a black terminal screen that provides excellent security. Basic Linux commands:- Check your present working directory. The command used to check the directory you are currently at is " pwd ". List all the files or directories including hidden files. " ls " - It is the command used to list the files in the present directory. There are multiple extensions that can be used along with ls command such as:- -a :- It displays all the hidden files in the directory. -l :- It gives a long listing of files. -R :- gives a recursive listing, including the contents of all subdirectories and their subdirectories and so on. -t :- lists the files in order of the time when they were last modified (newest first) rather than in alphabetical order. -r :- lists the files in the reverse of the order. -i :- displays all the files with t
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