Screen start issues
Cannot make directory ‘/var/run/screen’: Permission denied
It’s a very simple fix :- sudo mkdir /var/run/screen
- sudo chmod 775 /var/run/screen
- sudo chgrp utmp /var/run/screen
Cannot make directory ‘/var/run/screen’: Permission denied
It’s a very simple fix :The xargs command in Linux is a powerful utility for building and executing command lines from standard input, ideal for handling large sets of arguments. It simplifies tasks like file manipulation, data processing, and system administration by executing commands with multiple arguments efficiently. While xargs offers significant benefits, such as improved performance and script readability, it requires careful handling of special characters and thorough testing to avoid unintended consequences. Overall, xargs is indispensable for automating and streamlining workflows in Linux.
When updating Ubuntu and encountering “The following packages have been kept back,” it indicates manual intervention is needed due to dependency issues. You can cautiously upgrade these packages using specific apt-get commands or opt for a more aggressive approach with `dist-upgrade`, which handles complex dependencies by potentially adding or removing packages. Understanding each method’s implications is crucial for system stability.
Docker Compose simplifies building and managing applications that rely on multiple containers. Learn how a docker-compose.yml file defines dependencies and interactions between services like databases, web servers, and message queues, enabling seamless development, testing, and deployment workflows.