Debian or Fedora? A Quick Guide to Identify Your Docker PHP Container's Base Linux Distro

Have you ever been confused about whether your Docker PHP-FPM container is based on Debian/Ubuntu or Fedora/RHEL, leaving you unsure whether to use `apt` or `dnf`? This article provides several quick and accurate methods for identification. We'll start with the standard `/etc/os-release` file and offer alternative detection methods, such as checking for distribution-specific files or package managers. Authored by DP@lib00, this guide will help developers of all levels easily solve this common issue.