• Morethanevil@lemmy.fedifriends.social
    7·
    2 months ago

    Cleanup

    Check current disk usage:

    sudo journalctl --disk-usage

    Use rotate function:

    sudo journalctl --rotate

    Or

    Remove all logs and keep the last 2 days:

    sudo journalctl --vacuum-time=2days

    Or

    Remove all logs and only keep the last 100MB:

    sudo journalctl --vacuum-size=100M

    How to read logs:

    Follow specific log for a service:

    sudo journalctl -fu SERVICE

    Show extended log info and print the last lines of a service:

    sudo journalctl -xeu SERVICE

    • lseif@sopuli.xyz
      2·
      2 months ago

      --vacuum-time=2days

      this implies i keep an operating system installed for that long

    • macniel@feddit.org
      1·
      2 months ago

      I mean yeah -fu stands for “follow unit” but its also a nice coincidence when it comes to debugging that particular service.

    • slazer2au@lemmy.worldEnglish
      1·
      2 months ago

      sudo journalctl --disk-usage

      panda@Panda:~$ sudo journalctl --disk-usage  
No journal files were found.  
Archived and active journals take up 0B in the file system.

      hmmmmmm…

    • superkret@feddit.org
      0·
      2 months ago
      user@u9310x-Slack:~$ sudo journalctl --disk-usage  
Password:  
sudo: journalctl: command not found