Linux CLI - Linux Basics and Terminal
You want to write a script that detects if the system is Ubuntu, CentOS, or Fedora by reading
/etc/os-release. Which approach is best?You want to write a script that detects if the system is Ubuntu, CentOS, or Fedora by reading /etc/os-release. Which approach is best?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand /etc/os-release usage
This file contains a standard ID field identifying the distribution.Step 2: Compare other methods
Kernel version doesn't identify distro, /etc/centos-release only for CentOS, lsb_release may not be installed.Final Answer:
Check the value of the ID field in /etc/os-release -> Option BQuick Check:
Use ID field in os-release for distro detection [OK]
Quick Trick: ID field in /etc/os-release reliably identifies distro [OK]
Common Mistakes:
- Using kernel version for distro
- Relying on distro-specific files
- Assuming lsb_release always available
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