Linux清理方法：优化存储空间

<code>sudo rm -rf /tmp/*</code>

<code>sudo journalctl --vacuum-time=2weeks  # 仅保留最近两周记录
sudo journalctl --vacuum-size=1G      # 控制日志总量不超过1GB</code>

<code>sudo apt-get clean
sudo apt-get autoclean</code>

<code>sudo yum clean all</code>

<code>sudo dnf clean all</code>

<code>sudo apt-get autoremove</code>

<code>sudo yum autoremove</code>

<code>sudo dnf autoremove</code>

<code>sudo find / -type f -size +100M -exec ls -lh {} \;</code>

<code>dpkg --list | grep linux-image
sudo apt-get remove --purge </code>

<code>yum list installed | grep kernel
sudo yum remove kernel-</code>

<code>dnf list installed | grep kernel
sudo dnf remove kernel-</code>

<code>sudo nano /etc/logrotate.conf</code>

<code>/path/to/logfile {
    daily
    rotate 7
    compress
    missingok
    notifempty
    create 640 root adm
}</code>

<code>rm -rf ~/.cache/*</code>

<code>sudo apt-get install ncdu  # Debian/Ubuntu
sudo yum install ncdu      # CentOS/RHEL
sudo dnf install ncdu      # Fedora
<p>ncdu /</code>