du -hm --max-depth=1 /var/log | sort -n
# du -hm --max-depth=1 /var/log | sort -n 1 /var/log/anaconda 1 /var/log/chrony 1 /var/log/multi-nic-util 1 /var/log/ntpstats 1 /var/log/php-fpm 1 /var/log/rhsm 1 /var/log/tuned 18 /var/log/sa 40 /var/log/audit 60 /var/log/httpd 121 /var/log/journal 868 /var/log2. 查看日志占用存储
journalctl --disk-usage
# journalctl --disk-usage Archived and active journals take up 120.0M on disk.3. journalctl 命令自动维护文件大小
1)只保留近一周的日志
journalctl --vacuum-time=1w
2)只保留500MB的日志
journalctl --vacuum-size=500M 4. 删除/var/ # cd /var/log/httpd/ # echo ''>access_log
# echo ''>error_log
并且手动删除该目录下其它备份的日志文件。 5. 设置定时任务自动清理journal日志文件(每周日执行下面的命令,保保留500M的日志)
# crontab -l
* * * * 6 /usr/bin/journalctl --vacuum-size=500M