https://yegorov.github.io/tags/linux/ Recent content in Linux on Artem Yegorov Hugo en Tue, 03 Feb 2026 14:07:26 +0000 https://yegorov.github.io/notes/execute-external-bash-command-in-ruby/ Tue, 03 Feb 2026 14:07:26 +0000 https://yegorov.github.io/notes/execute-external-bash-command-in-ruby/ <p>Most of the Ruby gems that you develop need to interact with the operating system or invoke external commands. To do this, Ruby provides many built-in methods: <code>exec</code>, <code>system</code>, <code>spawn</code>, ```, <code>%x[]</code>, etc. There are also many different libraries that encapsulate all the complexity of working with parameter escaping, input/output, passing environment variables, getting exit codes, etc. One of my favorite gems is <a href="https://rubygems.org/gems/qbash" class="external-link" target="_blank" rel="noopener"><code>qbash</code></a>. It is a simple and powerful wrapper over <a href="https://github.com/ruby/open3" class="external-link" target="_blank" rel="noopener"><code>open3</code></a>, which extends the <code>Kernel</code> module with only one <code>qbash</code> method. The source code and usage examples can be found <a href="https://github.com/yegor256/qbash" class="external-link" target="_blank" rel="noopener">here</a>. What gems do you use for these purposes?</p>