https://mrtomlinux.org/tags/jq/ Recent content in Jq on Linux Café Hugo en Sun, 28 Jun 2026 09:47:47 +0200 https://mrtomlinux.org/post/2026-06-28-taming-log-noise-with-jq-and-yq-extracting-in/ Sun, 28 Jun 2026 09:47:47 +0200 https://mrtomlinux.org/post/2026-06-28-taming-log-noise-with-jq-and-yq-extracting-in/ <h2 id="introduction-to-log-noise">Introduction to Log Noise</h2> <p>I&rsquo;ve spent countless hours digging through log files to troubleshoot issues or monitor system performance. But let&rsquo;s be real, log noise can quickly become overwhelming. I&rsquo;ve seen this go wrong when you&rsquo;re dealing with massive log files and no clear way to extract valuable insights. Recently, I&rsquo;ve been working with increasingly complex JSON and YAML logs, which led me to explore tools like <code>jq</code> and <code>yq</code> to tame the noise. Don&rsquo;t bother with trying to parse these logs manually - it&rsquo;s a recipe for disaster.</p> https://mrtomlinux.org/post/2026-06-14-taming-log-noise-with-jq-and-yq-extracting-in/ Sun, 14 Jun 2026 08:17:40 +0200 https://mrtomlinux.org/post/2026-06-14-taming-log-noise-with-jq-and-yq-extracting-in/ <h2 id="introduction-to-log-noise">Introduction to Log Noise</h2> <p>I&rsquo;ve seen log files become increasingly cluttered over the years, making it tough to find the information I need. With the complexity of modern systems, log noise has become a significant problem. Log noise refers to the unnecessary or redundant information in log files that can make it difficult to extract valuable insights. In this article, I&rsquo;ll explore how to tame log noise using <code>jq</code> and <code>yq</code>, two powerful command-line tools for parsing JSON and YAML data.</p> https://mrtomlinux.org/post/2026-05-18-taming-duplicate-logs-with-uniq-sort-and-a-da/ Mon, 18 May 2026 10:31:59 +0200 https://mrtomlinux.org/post/2026-05-18-taming-duplicate-logs-with-uniq-sort-and-a-da/ <h2 id="introduction-to-log-management">Introduction to Log Management</h2> <p>As a Linux user, you&rsquo;re probably familiar with the importance of logs. I&rsquo;ve seen this go wrong when trying to debug an issue or monitor system performance - duplicate logs can be overwhelming. In this article, we&rsquo;ll explore how to remove duplicates using <code>uniq</code>, <code>sort</code>, and <code>jq</code>.</p> <h2 id="understanding-the-problem">Understanding the Problem</h2> <p>Duplicate logs can come from multiple sources: multiple instances of the same service, redundant logging mechanisms, or simple configuration mistakes. The real trick is to identify the cause and develop a strategy for removing duplicates. Don&rsquo;t bother with trying to manually sift through logs - that&rsquo;s a surefire way to waste time and miss important trends.</p>