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How to learn shell programming, in view of this problem, this article introduces the corresponding analysis and solutions in detail, hoping to help more partners who want to solve this problem to find a more simple and easy way.

In the digital age full of all kinds of Internet, the operation and maintenance of Linux is becoming more and more automatic, and more and more operation and maintenance personnel are moving forward on the road of automatic operation and maintenance. At present, the popular operation and maintenance automation languages under Linux are Shell and Python.

Between the two, shell is almost the automation programming language of operation and maintenance that IT must use, especially in the aspects of service monitoring, business rapid department, service start and stop. Shell is essential. Of course, Python is also better suited for dealing with complex business logic, developing complex operation and maintenance software tools, and enabling access through Web. Shell is a command interpreter that interprets commands and programs entered by users. Interactive conversation mode that responds immediately after entering a command.

How should shell learn?

First of all, consolidate the foundation of shell programming. Basic knowledge, working principle, programming syntax, programming habits and variable knowledge of Shell programming

Basic practical knowledge of Shell programming. Various numerical operations of variables, conditional tests and comparisons, conditional judgment statements, Shell functions, etc.

Basic practical skills of Shell programming. Case conditional statements, while loops, until loops, for loops, select loops, condition and loop control, and state return values, shell arrays, etc.

Basic knowledge of efficient Shell programming. Shell script development specifications and coding habits, Shell script debugging knowledge and skills, Shell script development environment configuration adjustment and optimization

Shell special application. The enterprise application of Linux signal and trap command, the application of expect automatic interaction program, the knowledge application of subshell program and shell program nesting mode.

Shell has the outer layer of the operating system. It is responsible for talking directly to the user, explaining the user's input to the operating system, processing the various output results of the operating system, and then outputting it to the screen and returning it to the user. Shell interprets and performs all actions after entering the system user name and logging in to Linux. Technology updates and iterations are relatively fast in the IT industry itself. With good learning methods and hard work, I believe that friends will have good development.

This is the answer to the question about how to learn shell programming. I hope the above content can be of some help to you. If you still have a lot of doubts to solve, you can follow the industry information channel to learn more about it.

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