https://rmqa.com/tags/macos/ Recent content in Macos on rmqa.com Hugo en-us Sun, 25 Oct 2026 00:00:00 +0000 https://rmqa.com/permission-denied-after-unzip-and-how-rmqa-spots-lost-executable-bits/ Sun, 25 Oct 2026 00:00:00 +0000 https://rmqa.com/permission-denied-after-unzip-and-how-rmqa-spots-lost-executable-bits/ <p>On Linux and macOS, a program runs only if its file is marked executable. The mark travels with the file in a tar archive, as part of each entry&rsquo;s Unix permissions. Lose it, and every user who downloads the release gets the same first experience:</p> <pre tabindex="0"><code>$ ./tidy bash: ./tidy: Permission denied </code></pre><p>Then a support question, or a quiet uninstall.</p> <h2 id="two-ways-it-gets-lost">Two Ways It Gets Lost</h2> <p><strong>Packing with the wrong mode.</strong> A script copies the program with a tool or a step that doesn&rsquo;t keep permissions, or builds the tar archive with fixed file modes, and the program goes in as <code>-rw-r--r--</code>. The archive looks normal, the program is fine, it just won&rsquo;t start.</p>