![]() ![]() Let’s say you want to have only five log files. You can limit the number of archive log files. As the logs get old, they are archived in various files. The journalctl usually has log files for the system and for the users. The third way is to limit the number of log files. You can specify the size in GB with G, MB with M, KB with K etc. ![]() Vacuuming done, freed 40.0M of archived journals from /var/log/journal/1b9ab93094fa4978beba80fd3c48a18c. This will reduce the log size to around 100 MB. ![]() This will delete the journal log files until the disk space taken by journal logs falls below the size you specified. Restrict logs to a certain sizeĪnother way is to restrict the log size. If you want bigger time units, you can 2weeks, 2months as well. You can also change the provide time frame in hours like 2h, in minutes like 2m, in seconds like 2s. Here’s what the output may look like: Vacuuming done, freed 1.6G of archived journals from /var/log/journal/1b9ab93094fa4978beba80fd3c48a18c To delete all entries older than two days, use this command: sudo journalctl -vacuum-time=2d ![]() Let’s say you want to keep the log history of just two days. Keep in mind that logs are important for auditing purposes so you should not delete all of them at the same time. You delete logs older than a certain time, or you delete older log files so that the total log size is limited to the predefined disk space, or you limit the number of log files. Now you have three ways to clear old journal logs. It’s optional but a good practice to do so. This will mark the currently active journal logs as archive and create fresh new logs. The journalctl command gives you the proper way of handling old logs.įirst thing you should do is to rotate journal files. You can, of course, use the rm command to delete the files in the log folder but I won’t advise that. If you decide to clear the journal logs, let me show you a couple of ways of doing it. Now that you know how much space the journal logs take, you can decide if you want to clear the logs or not. You can also use the journalctl command for the same task: journalctl -disk-usageīoth commands should give approximately the same result: :~$ journalctl -disk-usageĪrchived and active journals take up 1.6G in the file system. Clearing systemd journal logsįirst, check the space taken by journal logs with the du command: du -sh /var/log/journal/ Let me show you how to clean systemd journal logs and free up disk space on your Linux system. And if you check the disk space in Linux, you’ll see that sometimes, it takes several GB of space. The thing with logging is that over time, it starts to grow big. To view all the latest logs, use the command with the reverse option. You can either manually view the log files using less command or use the journalctl command. If you remember the Linux directory structure, /var is where the system logs are stored. It collects and stored kernel logging data, system log messages, standard output, and errors for various systemd services.Ī Linux machine with systemd writes the logs to /var/log/journal directory. It is equivalent to the syslog in the init system. The systemd journal is systemd’s own logging system. This quick tutorial shows you two ways to clear systemd journal logs from your Linux system. ![]()
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