linux的scp命令



==================
scp 命令
==================
scp 可以在 2个 linux 主机间复制文件和目录;

命令基本格式:

<wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">scp [可选参数] file_source file_target<br><br> ======<br> 从 本地 复制到 远程<br> ======<br> * 复制文件:<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">* 命令格式:<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp local_file remote_username@remote_ip:remote_folder<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">或者<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp local_file remote_username@remote_ip:remote_file<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">或者<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp local_file remote_ip:remote_folder<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">或者<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px"><span style="color:#FF0000">scp local_file remote_ip:remote_file</span><br><br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">第1,2个指定了用户名,命令执行后需要再输入密码,第1个仅指定了远程的目录,文件名字不变,第2个指定了文件名;<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">第3,4个没有指定用户名,命令执行后需要输入用户名和密码,第3个仅指定了远程的目录,文件名字不变,第4个指定了文件名;<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">* 例子:<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp /home/space/music/1.mp3root@www.cumt.edu.cn:/home/root/others/music<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp /home/space/music/1.mp3root@www.cumt.edu.cn:/home/root/others/music/001.mp3<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000">scp /home/space/music/1.mp3www.cumt.edu.cn:/home/root/others/music<br></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px; color:#FF0000"></span><wbr><span style="font-size:18px"><span style="color:#FF0000">scp /home/space/music/1.mp3www.cumt.edu.cn:/home/root/others/music/001.mp3</span><br><br> * 复制目录:<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">* 命令格式:<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px">scp -r local_folder remote_username@remote_ip:remote_folder<br></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr><span style="font-size:18px"></span><wbr style="font-size:18px"><span></span></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr></wbr>
### Linux SCP 命令使用指南 SCP 是 Secure Copy 的缩写,是一个基于 SSH 协议的安全文件传输工具。它允许用户在本地和远程主机之间或两个远程主机之间安全地复制文件。以下是关于 SCP 命令的详细介绍。 #### 一、基本语法 SCP 命令的基本结构如下: ```bash scp [选项] 源路径 目标路径 ``` #### 二、常见参数说明 | 参数 | 描述 | |------|------| | `-r` | 递归复制整个目录。如果需要复制的是一个文件夹而不是单个文件,则必须加上此选项。 | | `-p` | 保留文件的时间戳(即最后一次修改时间和访问时间)。 | | `-q` | 安静模式,不显示任何错误消息或进度条。 | | `-C` | 启用压缩机制以加速传输速度。 | | `-P port` | 指定远程主机上的 SSH 端口,默认为 22。 | 更多高级选项可以通过查阅手册页获得更多信息:`man scp`[^1]。 #### 三、典型应用场景及示例 ##### 1. **从本地向远程服务器上传文件** 假设您希望将本地的一个文档 `report.docx` 发送到 IP 地址为 `192.168.1.50` 的远程服务器上,并存储在其 `/home/user/documents/` 路径下。 ```bash scp report.docx user@192.168.1.50:/home/user/documents/ ``` ##### 2. **从远程服务器下载文件到本地** 如果您想获取位于远程服务器 `/var/log/system.log` 中的日志记录并保存到您的桌面。 ```bash scp user@192.168.1.50:/var/log/system.log ~/Desktop/ ``` ##### 3. **同步整个目录的内容** 为了备份某个项目资料夹至云端实例或其他物理位置,可以利用下面这条指令完成批量迁移工作。 ```bash scp -r /projects/my_project/ remote_user@backup_server:/backups/ ``` ##### 4. **跨多个远程节点间直接传送数据流** 有时我们需要让 A 主机直接把某些重要档案交给 B 主机而不经过自己电脑作为中介环节,在这种情况下就可以这么干: ```bash scp userA@serverA:/path/to/source_file userB@serverB:/path/to/target_directory/ ``` 这些例子展示了如何灵活运用 SCP 来满足日常运维需求的同时也强调了安全性的重要性[^5]。 #### 四、注意事项 - 当面对大量小型独立单元构成的整体集合时应谨慎选用合适的技术手段因为尽管 SCP 性能优越但仍可能存在效率瓶颈尤其是在高并发场景之下相比其他专门设计用来处理这种情况下的解决方案如 rsync 或者 ftpd 可能会显得力有未逮; - 如果经常需要用到特定配置好的环境变量或者是自定义的身份验证材料记得提前做好相应准备以免每次都要重复输入冗长繁琐的信息从而降低工作效率提升用户体验满意度[^4]。 --- ###
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