https://sergiobelkin.com/esContents © 2026 <a href="mailto:sebelk@gmail.com">sebelk</a> <a rel="license" href="https://creativecommons.org/licenses/by-nc-sa/4.0/"> <img alt="Creative Commons License BY-NC-SA" style="border-width:0; margin-bottom:12px;" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png"></a> Mon, 20 Apr 2026 23:54:27 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://sergiobelkin.com/posts/2017/12/17/5-ejemplos-con-journalctl/sebelk<div class="markdown-here-wrapper" data-md-url="http://www.sergiobelkin.com/wp-admin/post.php?post=880&amp;action=edit"> <h6 id="las-siguientes-son-ejemplos-de-consultas-que-podemos-hacer-con-journaltcl-" style="margin: 1.3em 0px 1em; padding: 0px; font-weight: bold; font-size: 1.4em; border-bottom: 1px solid #eeeeee;">Las siguientes son ejemplos de consultas que podemos hacer con journaltcl:</h6> <ul style="margin: 1.2em 0px; padding-left: 2em;"> <li style="margin: 0.5em 0px;">¿Cómo busco un comando o aplicación?<br> <code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;">journalctl \_COMM=master</code></li> <li style="margin: 0.5em 0px;">¿Cómo busco un usuario?<code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;"></code></li> <code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;">journalctl _UID=1000”</code> <li style="margin: 0.5em 0px;">¿Cómo veo los logs en un intervalo de tiempo?<br> <code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;">journalctl -S 2017-12-11 -U “2017-12-13 12:15”</code></li> <li style="margin: 0.5em 0px;">¿Cómo busco una determinada unidad?<br> <code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;">journalctl -u httpd</code></li> <li>¿Cómo veo los (posibles) problemas?<br> <code>journalctl -p notice</code></li> </ul> <p><a href="https://sergiobelkin.com/wp-content/uploads/2017/12/Spectacle.J12102.png"><img class="size-large wp-image-887 alignleft" src="https://sergiobelkin.com/wp-content/uploads/2017/12/Spectacle.J12102-1024x576.png" alt="journalctl" width="640" height="360"></a><br> <code style="font-size: 0.85em; font-family: Consolas, Inconsolata, Courier, monospace; margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid #eaeaea; background-color: #f8f8f8; border-radius: 3px; display: inline;"></code></p> <div style="height: 0; width: 0; max-height: 0; max-width: 0; overflow: hidden; font-size: 0em; padding: 0; margin: 0;" title="MDH:PHA+IyMgTGFzIHNpZ3VpZW50ZXMgc29uIGVqZW1wbG9zIGRlIGNvbnN1bHRhcyBxdWUgcG9kZW1v&lt;br /&gt; cyBoYWNlciBjb24gPGNvZGU+am91cm5hbHRjbDwvY29kZT4uPGJyIGRhdGEtbWNlLWJvZ3VzPSIx&lt;br /&gt; Ij48L3A+PHA+LSDCv0PDs21vIGJ1c2NvIHVuIGNvbWFuZG8gbyBhcGxpY2FjacOzbj88L3A+PHA+&lt;br /&gt; YGpvdXJuYWxjdGwgXF9DT01NPW1hc3RlcmA8L3A+PHA+LSDCv0PDs21vIGJ1c2NvIHVuIHVzdWFy&lt;br /&gt; aW8/PC9wPjxwPmBqb3VybmFsY3RsIFxfVUlEPSQoaWQgLXUgcG9zdGZpeClgPC9wPjxwPi0gwr9D&lt;br /&gt; w7NtbyB2ZW8gbG9zIGxvZ3MgZW4gdW4gaW50ZXJ2YWxvIGRlIHRpZW1wbz88L3A+PHA+YGpvdXJu&lt;br /&gt; YWxjdGwgLVMgMjAxNy0xMi0xMSAtVSAiMjAxNy0xMi0xMyAxMjoxNWA8L3A+PHA+LSDCv0PDs21v&lt;br /&gt; IGJ1c2NvIHVuYSBkZXRlcm1pbmFkYSB1bmlkYWQ/PC9wPjxwPmBqb3VybmFsY3RsIC11IGh0dHBk&lt;br /&gt; YDwvcD48cD4tIMK/Q8OzbW8gdmVvIGxvcyAocG9zaWJsZXMpIHByb2JsZW1hcz88L3A+PHA+YGpv&lt;br /&gt; dXJuYWxjdGwgLXAgbm90aWNlYDwvcD48cD48YnIgZGF0YS1tY2UtYm9ndXM9IjEiPjwvcD4=">​</div> </div>sysadminsystemdhttps://sergiobelkin.com/posts/2017/12/17/5-ejemplos-con-journalctl/Sun, 17 Dec 2017 19:00:04 GMT