Remove journal files older than specified time (e.g., 7 days):
$ sudo journalctl --vacuum-time=7d
Reduce disk usage below specified size (e.g., 1 G):
$ sudo journalctl --vacuum-size=1G
Clear journal logs:
$ sudo journalctl --rotate $ sudo journalctl --vacuum-time=1s
Show total disk usage of all journal files:
journalctl --disk-usage Archived and active journals take up 64.0M in the file system.
Journal files location:
$ ls -al /var/log/journal/ drwxr-sr-x+ 2 root systemd-journal 16384 0c9f3b205edb4888bbfc1d819d4454e3 $ ls -al /var/log/journal/0c9f3b205edb4888bbfc1d819d4454e3 -rw-r-----+ 1 root systemd-journal 25165824 system.journal -rw-r-----+ 1 root systemd-journal 16777216 user-1000.journal -rw-r-----+ 1 root systemd-journal 8388608 user-1001.journal -rw-r-----+ 1 root systemd-journal 8388608 user-1003.journal -rw-r-----+ 1 root systemd-journal 8388608 user-54324.journal