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How to use journalctl to View and Analyze Systemd Logs [With Examples]

How to use journalctl to View and Analyze Systemd Logs [With Examples]

There are various commands available to Linux users for troubleshooting desktop and server logs. Learn the basics of the journalctl utility of Systemd and its commands that can be used to view and analyze Systemd Logs in this DebugPoint.com guide.

 

Many say that Systemd is not good, it is heavy on the system and it is a debated topic always. But you can not deny that it provides a well set of utilities to manage, troubleshoot a system. Imagine you end up with a broken system with no GUI. You probably messed up boot and GRUB as well. In those kinds of scenarios or in general – you can boot from a LIVE system, mount your Linux partition and explore the Systemd logs to find out about the problem.

Systemd has three basic components as follows –

  • systemd: System and service manager for Linux operating systems.
  • systemctl: Command to introspect and control the state of the systemd system and service manager.
  • systemd-analyze: Provides system boot-up performance statistics and retrieve other state and tracing information from the system and service manager

Apart from these three, there are additional services that systemd provides such as – journald, logind, networkd, etc. In this guide we will talk about the journald service of systemd.

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