Debian 系统基础命令

幽幽老友 發表於 2025-8-20 15:25:00

<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">Debian 系统的基础命令与大多数 Linux 发行版通用，掌握这些命令可以高效管理系统、文件和进程。以下是按功能分类的常用基础命令：</div>
<h3 class="header-vfC6AV auto-hide-last-sibling-br">一、系统信息与管理</h3>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">查看系统版本</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash">lsb_release <span class="token parameter variable">-a<span class="token comment"># 显示 Debian 版本信息（需安装 lsb-release 包）
<span class="token function">cat /etc/debian_version<span class="token comment"># 直接查看 Debian 版本号
</span></span></span></span></code></pre>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">查看内核信息</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">uname <span class="token parameter variable">-a<span class="token comment"># 显示完整内核版本、主机名、架构等
<span class="token function">uname <span class="token parameter variable">-r<span class="token comment"># 仅显示内核版本
</span></span></span></span></span></span></code></pre>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">free <span class="token parameter variable">-h<span class="token comment"># 查看内存使用情况（-h 以人类可读格式显示）
<span class="token function">df <span class="token parameter variable">-h <span class="token comment"># 查看磁盘空间使用情况
<span class="token function">du <span class="token parameter variable">-sh <span class="token operator"><目录<span class="token operator">><span class="token comment"># 查看指定目录的总大小（-s 汇总，-h 人性化）
<span class="token function">top    <span class="token comment"># 实时监控 CPU、内存、进程（按 q 退出）
<span class="token function">htop <span class="token comment"># 更友好的资源监控工具（需安装：sudo apt install htop）
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">系统状态与控制</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash">systemctl status<span class="token comment"># 查看系统服务状态
<span class="token function">sudo <span class="token function">reboot    <span class="token comment"># 重启系统
<span class="token function">sudo poweroff <span class="token comment"># 关闭系统
<span class="token function">sudo systemctl start <span class="token operator"><服务名<span class="token operator">><span class="token comment"># 启动服务（如 nginx）
<span class="token function">sudo systemctl <span class="token builtin class-name">enable <span class="token operator"><服务名<span class="token operator">> <span class="token comment"># 设置服务开机自启
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">二、文件与目录操作</h3>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">导航与查看目录</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token builtin class-name">pwd    <span class="token comment"># 显示当前所在目录路径
<span class="token builtin class-name">cd <span class="token operator"><目录<span class="token operator">><span class="token comment"># 切换到指定目录（cd ~ 回到家目录，cd .. 回到上级目录）
<span class="token function">ls       <span class="token comment"># 列出当前目录文件（默认不显示隐藏文件）
<span class="token function">ls <span class="token parameter variable">-l    <span class="token comment"># 详细列表形式显示（权限、大小、修改时间等）
<span class="token function">ls <span class="token parameter variable">-a    <span class="token comment"># 显示所有文件（包括隐藏文件，以 . 开头）
<span class="token function">ls <span class="token parameter variable">-lh <span class="token comment"># 详细列表 + 人性化大小（如 K、M、G）
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">创建与删除</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">mkdir <span class="token operator"><目录名<span class="token operator">>    <span class="token comment"># 创建目录
<span class="token function">mkdir <span class="token parameter variable">-p a/b/c    <span class="token comment"># 递归创建多级目录（如 a/b/c）
<span class="token function">touch <span class="token operator"><文件名<span class="token operator">>    <span class="token comment"># 创建空文件或更新文件修改时间
<span class="token function">rm <span class="token operator"><文件<span class="token operator">>          <span class="token comment"># 删除文件（需确认）
<span class="token function">rm <span class="token parameter variable">-f <span class="token operator"><文件<span class="token operator">>       <span class="token comment"># 强制删除文件（不提示）
<span class="token function">rm <span class="token parameter variable">-r <span class="token operator"><目录<span class="token operator">>       <span class="token comment"># 递归删除目录及内容（需确认）
<span class="token function">rm <span class="token parameter variable">-rf <span class="token operator"><目录<span class="token operator">>    <span class="token comment"># 强制递归删除（慎用，无法恢复）
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">复制与移动</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">cp <span class="token operator"><源文件<span class="token operator">> <span class="token operator"><目标路径<span class="token operator">><span class="token comment"># 复制文件
<span class="token function">cp <span class="token parameter variable">-r <span class="token operator"><源目录<span class="token operator">> <span class="token operator"><目标路径<span class="token operator">><span class="token comment"># 递归复制目录
<span class="token function">mv <span class="token operator"><源<span class="token operator">> <span class="token operator"><目标<span class="token operator">>       <span class="token comment"># 移动文件/目录（也可用于重命名）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">查看文件内容</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">cat <span class="token operator"><文件<span class="token operator">>    <span class="token comment"># 一次性显示整个文件内容
<span class="token function">less <span class="token operator"><文件<span class="token operator">> <span class="token comment"># 分页查看文件（按空格键翻页，q 退出）
<span class="token function">head <span class="token operator"><文件<span class="token operator">> <span class="token comment"># 显示文件前 10 行（-n 数字可指定行数，如 head -n 5）
<span class="token function">tail <span class="token operator"><文件<span class="token operator">> <span class="token comment"># 显示文件后 10 行（-f 实时跟踪文件更新，如日志）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">文件权限管理</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">chmod <span class="token number">755 <span class="token operator"><文件<span class="token operator">><span class="token comment"># 设置文件权限（r=4, w=2, x=1；755 表示 owner 读写执行，其他读执行）
<span class="token function">chown <span class="token operator"><用户<span class="token operator">>:<span class="token operator"><组<span class="token operator">> <span class="token operator"><文件<span class="token operator">><span class="token comment"># 修改文件所有者和所属组（如 chown root:www data.txt）
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">三、软件包管理（Debian 核心）</h3>
<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">Debian 使用 <code>apt</code>（Advanced Package Tool）管理软件包，常用命令：</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">sudo <span class="token function">apt update<span class="token comment"># 更新软件源索引（获取最新软件列表）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">安装软件</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">sudo <span class="token function">apt <span class="token function">install <span class="token operator"><软件名<span class="token operator">><span class="token comment"># 安装指定软件（如 sudo apt install nginx）
<span class="token function">sudo <span class="token function">apt <span class="token function">install <span class="token parameter variable">-y <span class="token operator"><软件名<span class="token operator">><span class="token comment"># 自动确认安装（无需手动输入 y）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">升级软件</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">sudo <span class="token function">apt upgrade<span class="token comment"># 升级已安装的软件（不删除旧依赖）
<span class="token function">sudo <span class="token function">apt full-upgrade<span class="token comment"># 升级软件并自动处理依赖变更（可能删除旧包）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">卸载软件</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">sudo <span class="token function">apt remove <span class="token operator"><软件名<span class="token operator">><span class="token comment"># 卸载软件（保留配置文件）
<span class="token function">sudo <span class="token function">apt purge <span class="token operator"><软件名<span class="token operator">> <span class="token comment"># 彻底卸载（删除配置文件）
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">清理无用包</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">sudo <span class="token function">apt autoremove<span class="token comment"># 自动删除不再需要的依赖包
<span class="token function">sudo <span class="token function">apt clean    <span class="token comment"># 清理下载的软件包缓存
</span></span></span></span></span></span></code></pre>
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<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">搜索软件</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">apt search <span class="token operator"><关键词<span class="token operator">><span class="token comment"># 搜索包含关键词的软件包（如 apt search text-editor）
</span></span></span></span></code></pre>
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">四、用户与权限管理</h3>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">whoami    <span class="token comment"># 显示当前登录用户名
<span class="token function">useradd <span class="token operator"><用户名<span class="token operator">><span class="token comment"># 创建新用户（需设置密码：sudo passwd <用户名>）
<span class="token function">userdel <span class="token operator"><用户名<span class="token operator">><span class="token comment"># 删除用户（-r 同时删除家目录）
<span class="token function">su <span class="token operator"><用户名<span class="token operator">> <span class="token comment"># 切换到指定用户（su - 切换并加载环境变量）
<span class="token function">sudo <span class="token operator"><命令<span class="token operator">> <span class="token comment"># 以 root 权限执行命令（需当前用户在 sudo 组）
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">groupadd <span class="token operator"><组名<span class="token operator">> <span class="token comment"># 创建用户组
<span class="token function">usermod <span class="token parameter variable">-aG <span class="token operator"><组名<span class="token operator">> <span class="token operator"><用户名<span class="token operator">><span class="token comment"># 将用户添加到组（如 sudo 组）
<span class="token function">groups <span class="token operator"><用户名<span class="token operator">> <span class="token comment"># 查看用户所属的组
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">五、网络管理</h3>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token function">ip addr<span class="token comment"># 查看网卡IP地址（替代旧命令 ifconfig）
<span class="token function">ip route<span class="token comment"># 查看路由表（默认网关等）
<span class="token function">ping <span class="token operator"><IP/域名<span class="token operator">><span class="token comment"># 测试网络连通性（按 Ctrl+C 停止）
<span class="token function">curl <span class="token operator"><URL<span class="token operator">><span class="token comment"># 发送HTTP请求（如 curl https://www.debian.org）
<span class="token function">wget <span class="token operator"><URL<span class="token operator">><span class="token comment"># 下载文件（如 wget https://example.com/file.tar.gz）
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<pre class="container-_HmLba language-bash"><code class="language-bash">ss <span class="token parameter variable">-tuln<span class="token comment"># 查看监听的TCP/UDP端口（-t TCP，-u UDP，-l 监听，-n 数字显示端口）
<span class="token function">netstat <span class="token parameter variable">-tulpn<span class="token comment"># 类似 ss，但需安装 net-tools 包
</span></span></span></span></span></code></pre>
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">六、压缩与解压</h3>
<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">常见压缩格式处理：</div>
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<pre class="container-_HmLba language-bash"><code class="language-bash"><span class="token comment"># .tar.gz 格式
<span class="token function">tar <span class="token parameter variable">-zcvf <span class="token operator"><压缩包名<span class="token operator">>.tar.gz <span class="token operator"><文件/目录<span class="token operator">><span class="token comment"># 压缩
<span class="token function">tar <span class="token parameter variable">-zxvf <span class="token operator"><压缩包名<span class="token operator">>.tar.gz          <span class="token comment"># 解压

<span class="token comment"># .zip 格式（需安装 zip/unzip）
<span class="token function">zip <span class="token operator"><压缩包名<span class="token operator">>.zip <span class="token operator"><文件<span class="token operator">>             <span class="token comment"># 压缩
<span class="token function">unzip <span class="token operator"><压缩包名<span class="token operator">>.zip                   <span class="token comment"># 解压

<span class="token comment"># .rar 格式（需安装 unrar）
<span class="token function">unrar x <span class="token operator"><压缩包名<span class="token operator">>.rar                <span class="token comment"># 解压
</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></code></pre>
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<h3 class="header-vfC6AV auto-hide-last-sibling-br">总结</h3>
<div class="auto-hide-last-sibling-br paragraph-JOTKXA paragraph-element br-paragraph-space">以上命令覆盖了 Debian 系统的日常管理需求，包括系统监控、文件操作、软件管理、用户权限和网络调试。熟练掌握这些命令可以显著提高系统操作效率，后续可根据具体场景（如服务器管理、开发环境配置）深入学习进阶命令。</div><br><br>
来源：https://www.cnblogs.com/hanease/p/19048811

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Debian 系统 基础命令

Debian 系统基础命令