Parse the systemd journal with QJournalctl
Quick Plot

© Lead Image © varijanta, 123RF.com
QJournalctl is a convenient GUI tool that will help you track down log data in the systemd journal.
After more than 10 years of development, systemd has undeniably arrived. The systemd system and service manager still does not find undivided approval in the open source community, but the discussions centered on what was once a very controversial topic have calmed down. No matter what you think of systemd, it has improved a few things.
One of the benefits of systemd is its ability to log information, warnings, and errors. In systemd, the component responsible for logging is known as the journal. Systemd-journald provides much more data than conventional log files /var/log/messages
or /var/log/syslog
that have been used for decades. In some cases, the journal even includes metadata that you can use to refine your journal searches.
Systemd's journaling results in a high volume of data that would be difficult to handle with conventional text files. Because of this high volume, systemd stores the data in binary files that can be read with the journalctl
command. Various programs and services, and even the kernel, write their log entries to the journal. The systemd journal combines all these logs and offers various options for finding the information you need in a targeted way.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
Linux Kernel 6.16 Released with Minor Fixes
The latest Linux kernel doesn't really include any big-ticket features, just a lot of lines of code.
-
EU Sovereign Tech Fund Gains Traction
OpenForum Europe recently released a report regarding a sovereign tech fund with backing from several significant entities.
-
FreeBSD Promises a Full Desktop Installer
FreeBSD has lacked an option to include a full desktop environment during installation.
-
Linux Hits an Important Milestone
If you pay attention to the news in the Linux-sphere, you've probably heard that the open source operating system recently crashed through a ceiling no one thought possible.
-
Plasma Bigscreen Returns
A developer discovered that the Plasma Bigscreen feature had been sitting untouched, so he decided to do something about it.
-
CachyOS Now Lets Users Choose Their Shell
Imagine getting the opportunity to select which shell you want during the installation of your favorite Linux distribution. That's now a thing.
-
Wayland 1.24 Released with Fixes and New Features
Wayland continues to move forward, while X11 slowly vanishes into the shadows, and the latest release includes plenty of improvements.
-
Bugs Found in sudo
Two critical flaws allow users to gain access to root privileges.
-
Fedora Continues 32-Bit Support
In a move that should come as a relief to some portions of the Linux community, Fedora will continue supporting 32-bit architecture.
-
Linux Kernel 6.17 Drops bcachefs
After a clash over some late fixes and disagreements between bcachefs's lead developer and Linus Torvalds, bachefs is out.