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This article mainly explains "what are the shell programming skills". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn what shell programming skills are.

Shell programming skills:

1. Basic grammar: when you start learning with a book, some people like to read the whole tutorial first to practice on the computer, or even not to practice. I do not advocate this, my advice is: knock, knock nasty once, take some time to knock every day, until you have to stop because of lack of knowledge, then read the part of the book you want to know, and then continue to start your project

2.. Start with simplicity, simple judgment, and simple cycle. Repeat it. And often try different methods until you form your own style.

3. Find a few more examples to analyze, don't just look at it, it will be done. Can you still write when you close your eyes? Many hackers write programs in books at first, not to mention that shell is not a program.

4. For problem analysis to form programming thinking, that is, if you want to use the programming problem, the script problem can be decomposed in mind, such as writing a script that does not require a service.

The understanding and analysis of this sentence:

The first command to disable the service is: chkconfig service name-- level 345 off

Then multiple services: multiple to use, but the analysis of the above command shows that the service name is different, then you will think of the loop.

Can you think of this when you see this sentence? when you think about it, your mind forms a primary programming mind.

When you see a big problem, then you can analyze it to a unit, but to the big aspect, the function, then the judgment, the loop, then the command combination.

At this time, you will know how to program. General problems can be written as long as you are debugged on the machine.

5. Specification for programming variable names

This is almost a clich é.

6. Remember that in the early days, don't look at big scripts, start with small problems, from small aspects, when you think the small aspects are judgments, cycles, etc. can come out in an instant in your mind, start to learn and think in big ways.

7. Read the error tips carefully. When there are mistakes, many people choose to sweep them away and will not read them carefully. In fact, there will be a lot of information in the error message, so get into the habit of reading carefully from now on.

8. Do not be stingy with comments, because once you are stingy with comments, there will be situations where you do not even know why you have written it.

Thank you for your reading, the above is the content of "what are the shell programming skills?" after the study of this article, I believe you have a deeper understanding of what shell programming skills have, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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