If a sequence of three commands is executed twice in a row, it is recommended that you write it as a Shell script – blog.fleeto.us Recently, I increasingly realize that shell can replace python as the second language for devops engineers. Because daily work may be repetitive, many repetitive operations in work can be reduced by shell scripts to reduce mental burden. Let me give you an example:

The length only accounts for 20%, but the effectiveness reaches 80% - 80/20 Rule What can you learn from this article? In this article, we will learn how to use the 80/20 rule to effortlessly learn the linux text processing command awk. After reading this article, you will learn a fast learning method, and how to use awk to process text and stdout. Recently, while learning awk, I found that there are really many details.

What can you get from reading this article This article mainly talks about some things you need to do after coming to work in Singapore. By reading this article, you can get some necessary things you need to do after landing in Singapore, such as renting a house, applying for a bank card, etc., to prevent everyone from stepping into pitfalls. Renting a House The first important thing after coming to work in Singapore is to rent a house.

Docker is not a new technology, but a tool that puts old wine in new bottles. Actually, I used Docker when I was in college, around 2017, when Docker was in its heyday. It was just used to start various lightweight applications, such as magnetic link downloaders, personal network disks, etc. Until recently, my understanding of Docker was still relatively vague. As I continued to encounter requirements at work, I also continued to understand Docker, so I decided to write an article to summarize my recent use of Docker.

Some Practices and Thoughts on Writing Maintainable Code Recently, I have been modifying a piece of historical code that has a distinct style and has been handled by many hands. I found that there are many mistakes in the design of the code. This makes it very difficult for me to modify the code and add new features. This article is written with personal emotions, so there may be some subjectivity.