https:///index.php?action=history&feed=atom&title=SystemdSystemd - Revision history2026-08-05T02:56:36ZRevision history for this page on the wikiMediaWiki 1.35.1Gr0x0rd: /* Checking service logs */2022-05-17T16:51:15Z<p><span dir="auto"><span class="autocomment">Checking service logs</span></span></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 16:51, 17 May 2022</td>
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<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $ sudo journalctl -u <unit></div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> $ sudo journalctl -u <unit></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It's possible to trim the output using filters. This is necessary and sufficient for problematic services. To see all entries since a specific time</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>It's possible to trim the output using filters. This is necessary and sufficient for problematic services. To see all entries since a specific time</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $ journalctl -u <unit> --since "2022-08-30 14:10:10" </div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $ <ins class="diffchange diffchange-inline">sudo </ins>journalctl -u <unit> --since "2022-08-30 14:10:10" </div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>To view all entries withing a specific timeframe</div></td><td class='diff-marker'> </td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>To view all entries withing a specific timeframe</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> $ journalctl -u <unit> --since "2022-08-30 14:10:10" --until "2022-08-30 14:20:10"</div></td><td class='diff-marker'>+</td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> $ <ins class="diffchange diffchange-inline">sudo </ins>journalctl -u <unit> --since "2022-08-30 14:10:10" --until "2022-08-30 14:20:10"</div></td></tr>
</table>Gr0x0rdGr0x0rd: Created page with "Systemd is a different animal from the old days of init.d. Each service has a unit, and depending on the name of the unit, you can use systemd to enable, start, stop, disable..."2022-05-17T16:50:43Z<p>Created page with "Systemd is a different animal from the old days of init.d. Each service has a unit, and depending on the name of the unit, you can use systemd to enable, start, stop, disable..."</p>
<p><b>New page</b></p><div>Systemd is a different animal from the old days of init.d. Each service has a unit, and depending on the name of the unit, you can use systemd to enable, start, stop, disable or check the status of a service.<br />
==Checking the status of a service==<br />
$ sudo systemctl status <unit><br />
==Adding a service to startup==<br />
$ sudo systemctl enable <unit><br />
==Starting a service==<br />
$ sudo systemctl start <unit><br />
==Stopping a service==<br />
$ sudo systemctl stop <unit><br />
==Disabling a service==<br />
$ sudo systemctl disable <unit><br />
==Checking service logs==<br />
The logs reset and accumulate after ''system'' startup. So if your machine has been running for a long time, or the service has generated a lot of logs, you might be dealing with a lot of information when checking the logs. To do so use the '''journalctl''' directive.<br />
$ sudo journalctl -u <unit><br />
It's possible to trim the output using filters. This is necessary and sufficient for problematic services. To see all entries since a specific time<br />
$ journalctl -u <unit> --since "2022-08-30 14:10:10" <br />
To view all entries withing a specific timeframe<br />
$ journalctl -u <unit> --since "2022-08-30 14:10:10" --until "2022-08-30 14:20:10"</div>Gr0x0rd