ShellCheck - is a new tools for me, which can help to debug and beauty my shell scripts. Only today I refactored my backup script, using hints in VSCode. This tool have big documentation with explanation, why you must check and fix your code. This is a useful utility that everyone needs in his environment. Simple install (in MacOS): brew install shellcheck You can also install plugin for Visual Studio Code: ...
Not long time ago I finished read the book from Google: Site Reliability Engineering. This book is more theoretical, it describes various situations and how people doing in this situations. This book is more about culture, than about technical sides of work. I found very interesting latest chapters (“Part V - Conclusions”) of this book and also appendix, which can help to understand how to create work process in team. That’s all. ...
Like other people, I would like to announce my 2019 results. Some of my achievements not big for other people, but it is achievements for me. Let’s started! Achievement of the year #1 I started training in the gym regularly. It is good idea - training in gym regularly, because hard training can clear your mind and remove bad thoughts. And it can increase your physical powers. Many scientist talk about training as positive factor for our mental health and I agree with them. ...
When I started training in gym, I want to increase my productivity level. And I found the way to do it: listening very useful podcasts in English. The first podcats, which I listened is The Big English Stand-up Show. I don’t think that is very useful podcast, but in podcast people talk about thing, what happened everyday: about cars, weather, people, food and many, many other things. It is good practice for training listening english and do it with different people, different voices and various themes for talking. ...
Основы процессов Как в Linux уникально идентифицируется процесс? С помощью PID (идентификатор процесса), который не повторяется в один момент времени. Что такое процесс init? init — первый процесс, который запускает ядро. Он отвечает за инициализацию системы (службы, модули и пр.). В современных дистрибутивах его заменяет systemd. Какие системные вызовы происходят при запуске команды (например, ls) в bash? Bash выполняет fork — создаёт новый процесс. В дочернем процессе выполняется exec — замена его на новую программу (ls). Команда запускается и выполняется. Как работает терминал (кратко)? Терминал ждёт ввода пользователя, форкается для запуска команды и ждёт завершения процесса. После этого возвращается к ожиданию команд. ...