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[#]: collector: (lujun9972)
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[#]: translator: (dianbanjiu )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Dcp (Dat Copy) – Easy And Secure Way To Transfer Files Between Linux Systems)
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[#]: via: (https://www.2daygeek.com/dcp-dat-copy-secure-way-to-transfer-files-between-linux-systems/)
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[#]: author: (Vinoth Kumar https://www.2daygeek.com/author/vinoth/)
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Dcp (Dat Copy) – Easy And Secure Way To Transfer Files Between Linux Systems
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======
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Linux has native command to perform this task nicely using scp and rsync. However, we need to try new things.
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Also, we need to encourage the developers who is working new things with different concept and new technology.
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We also written few articles about these kind of topic, you can navigate those by clicking the below appropriate links.
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Those are **[OnionShare][1]** , **[Magic Wormhole][2]** , **[Transfer.sh][3]** and **ffsend**.
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### What’s Dcp?
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[dcp][4] copies files between hosts on a network using the peer-to-peer Dat network.
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dcp can be seen as an alternative to tools like scp, removing the need to configure SSH access between hosts.
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This lets you transfer files between two remote hosts, without you needing to worry about the specifics of how said hosts reach each other and regardless of whether hosts are behind NATs.
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dcp requires zero configuration and is secure, fast, and peer-to-peer. Also, this is not production-ready software. Use at your own risk.
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### What’s Dat Protocol?
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Dat is a peer-to-peer protocol. A community-driven project powering a next-generation Web.
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### How dcp works:
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dcp will create a dat archive for a specified set of files or directories and, using the generated public key, lets you download said archive from a second host.
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Any data shared over the network is encrypted using the public key of the archive, meaning data access is limited to those who have access to said key.
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### dcp Use cases:
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* Send files to multiple colleagues – just send the generated public key via chat and they can receive the files on their machine.
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* Sync files between two physical computers on your local network, without needing to set up SSH access.
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* Easily send files to a friend without needing to create a zip and upload it the cloud.
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* Copy files to a remote server when you have shell access but not SSH, for example on a kubernetes pod.
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* Share files between Linux/macOS and Windows, which isn’t exactly known for great SSH support.
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### How To Install NodeJS & npm in Linux?
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dcp package was written in JavaScript programming language so, we need to install NodeJS as a prerequisites to install dcp. Use the following command to install NodeJS in Linux.
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For **`Fedora`** system, use **[DNF Command][5]** to install NodeJS & npm.
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```
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$ sudo dnf install nodejs npm
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```
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For **`Debian/Ubuntu`** systems, use **[APT-GET Command][6]** or **[APT Command][7]** to install NodeJS & npm.
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```
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$ sudo apt install nodejs npm
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```
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For **`Arch Linux`** based systems, use **[Pacman Command][8]** to install NodeJS & npm.
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```
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$ sudo pacman -S nodejs npm
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```
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For **`RHEL/CentOS`** systems, use **[YUM Command][9]** to install NodeJS & npm.
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```
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$ sudo yum install epel-release
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$ sudo yum install nodejs npm
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```
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For **`openSUSE Leap`** system, use **[Zypper Command][10]** to install NodeJS & npm.
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```
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$ sudo zypper nodejs6
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```
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### How To Install dcp in Linux?
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Once you have installed the NodeJS, use the following npm command to install dcp.
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npm is a package manager for the JavaScript programming language. It is the default package manager for the JavaScript runtime environment Node.js.
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```
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# npm i -g dat-cp
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```
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### How to Send Files Through dcp?
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Enter the files or folders which you want to transfer to remote server followed by the dcp command, And no need to mention the destination machine name.
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```
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# dcp [File Name Which You Want To Transfer]
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```
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It will generate a dat archive for the given file when you ran the dcp command. Once it’s done then it will geerate a public key at the bottom of the page.
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### How To Receive Files Through dcp?
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Enter the generated the public key on remote server to receive the files or folders.
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```
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# dcp [Public Key]
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```
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To recursively copy directories.
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```
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# dcp [Folder Name Which You Want To Transfer] -r
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```
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In the following example, we are going to transfer a single file.
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![][12]
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Output for the above file transfer.
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![][13]
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If you want to send more than one file, use the following format.
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![][14]
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Output for the above file transfer.
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![][15]
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To recursively copy directories.
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![][16]
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Output for the above folder transfer.
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![][17]
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It won’t allow you to download the files or folders in second time. It means once you downloaded the files or folders then immediately the link will be expired.
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![][18]
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Navigate to man page to know about other options.
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```
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# dcp --help
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```
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--------------------------------------------------------------------------------
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via: https://www.2daygeek.com/dcp-dat-copy-secure-way-to-transfer-files-between-linux-systems/
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作者：[Vinoth Kumar][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.2daygeek.com/author/vinoth/
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[b]: https://github.com/lujun9972
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[1]: https://www.2daygeek.com/onionshare-secure-way-to-share-files-sharing-tool-linux/
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[2]: https://www.2daygeek.com/wormhole-securely-share-files-from-linux-command-line/
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[3]: https://www.2daygeek.com/transfer-sh-easy-fast-way-share-files-over-internet-from-command-line/
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[4]: https://github.com/tom-james-watson/dat-cp
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[5]: https://www.2daygeek.com/dnf-command-examples-manage-packages-fedora-system/
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[6]: https://www.2daygeek.com/apt-get-apt-cache-command-examples-manage-packages-debian-ubuntu-systems/
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[7]: https://www.2daygeek.com/apt-command-examples-manage-packages-debian-ubuntu-systems/
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[8]: https://www.2daygeek.com/pacman-command-examples-manage-packages-arch-linux-system/
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[9]: https://www.2daygeek.com/yum-command-examples-manage-packages-rhel-centos-systems/
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[10]: https://www.2daygeek.com/zypper-command-examples-manage-packages-opensuse-system/
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[11]: data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[12]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-1.png
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[13]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-2.png
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[14]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-3.jpg
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[15]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-4.jpg
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[16]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-6.jpg
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[17]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-7.jpg
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[18]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-5.jpg
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@ -0,0 +1,176 @@
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[#]: collector: (lujun9972)
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[#]: translator: (dianbanjiu )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Dcp (Dat Copy) – Easy And Secure Way To Transfer Files Between Linux Systems)
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[#]: via: (https://www.2daygeek.com/dcp-dat-copy-secure-way-to-transfer-files-between-linux-systems/)
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[#]: author: (Vinoth Kumar https://www.2daygeek.com/author/vinoth/)
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Dcp（Dat Copy）—— 在不同 Linux 系统之间传输文件的安全又容易的方式
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======
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Linux 本就有 scp 和 rsync 可以完美地完成这个任务。然而我们今天还是想试点新东西。
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同时我们也很鼓励那些使用不同的理论和新技术开发新东西的开发者。
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我们也写过其他很多有关这个主题的文章，你可以点击下面的链接访问这些内容。
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它们分别是 **[OnionShare][1]**，**[Magic Wormhole][2]**，**[Transfer.sh][3]** 和 **ffsend**。
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### 什么是 Dcp？
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[dcp][4] 在不同主机之间使用对等网络复制文件。
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dcp 被视作一个像是 scp 这样工具的替代品，无需在主机间进行 SSH 授权。
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这可以让你在两个主机间传输文件时，无需操心所述主机之间互相访问的细节，以及这些主机是否使用了 NATs。
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dcp 零配置、安全、快速、且是 P2P 传输。这并不是一个商用软件，使用产生的风险将由使用者自己承担。
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### 什么是 Dat 协议
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Dat 是一个 P2P 协议，是一个致力于下一代 Web 的社区驱动的项目。
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### dcp 如何工作
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dcp 将会为指定的文件或者文件夹创建一个 dat 归档，并生成一个公钥，使用这个公钥可以让其他人从另外一台主机上下载上面的文件。
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使用网络共享的任何数据都使用归档的公钥加密，也就是说文件的接收权仅限于那些知道公钥的人。
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### dcp 使用案例
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* 向多个同事发送文件 —— 只需要告诉他们生成的公钥，然后他们就可以在他们的机器上收到对应的文件了。
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* 无需设置 SSH 授权就可以在你本地网络的两个不同物理机上同步文件。
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* 无需压缩文件并把文件上传到云端就可以轻松地发送文件。
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* 当你有 shell 授权而没有 SSH 授权时也可以复制文件到远程服务器上。
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* 在没有很好的 SSH 支持的 Linux/macOS 以及 Windows 系统之间分享文件。
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### 如何在 Linux 上安装 NodeJS & npm？
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dcp 是用 JavaScript 写成的，所以在安装 dcp 前，需要先安装 NodeJS。在 Linux 上使用下面的命令安装 NodeJS。
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**Fedora** 系统，使用 **[DNF 命令][5]** 安装 NodeJS & npm。
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```
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$ sudo dnf install nodejs npm
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```
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**`Debian/Ubuntu`** 系统，使用 **[APT-GET 命令][6]** 或者 **[APT 命令][6]** 安装 NodeJS & npm。
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```
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$ sudo apt install nodejs npm
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```
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**`Arch Linux`** 系统，使用 **[Pacman 命令][8]** 安装 NodeJS & npm。
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```
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$ sudo pacman -S nodejs npm
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```
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**`RHEL/CentOS`** 系统，使用 **[YUM 命令][9]** 安装 NodeJS & npm。
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```
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$ sudo yum install epel-release
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$ sudo yum install nodejs npm
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```
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**`openSUSE Leap`** 系统，使用 **[Zypper 命令][10]** 安装 NodeJS & npm。
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```
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$ sudo zypper nodejs6
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```
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### 如何在 Linux 上安装 dcp？
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在安装好 NodeJS 后，使用下面的 npm 命令安装 dcp。
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npm 是一个 JavaScript 的包管理。它是 JavaScript 的运行环境 Node.js 的默认包管理。
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```
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# npm i -g dat-cp
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```
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### 如何通过 dcp 发送文件？
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在 dcp 命令后跟你想要传输的文件或者文件夹。而且无需注明目标机器的名字。
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```
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# dcp [File Name Which You Want To Transfer]
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```
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在你运行 dcp 命令时将会为传送的文件生成一个 dat 归档。一旦执行完成将会在页面底部生成一个公钥。
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### 如何通过 dcp 接收文件
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在远程服务器上输入公钥即可接收对应的文件或者文件夹。
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```
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# dcp [Public Key]
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```
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以递归形式复制目录。
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```
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# dcp [Folder Name Which You Want To Transfer] -r
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```
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下面这个例子我们将会传输单个文件。
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![][12]
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上述文件的输出。
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![][13]
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如果你想传输不止一个文件，使用下面的格式。
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![][14]
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上述文件的输出。
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![][15]
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递归复制文件夹。
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![][16]
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上述文件夹传输的输出。
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![][17]
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这种方式下你只能够下载一次文件或者文件夹，不可以多次下载。这也就意味着一旦你下载了这些文件或者文件夹，这个链接就会立即失效。
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![][18]
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也可以在手册页查看更多的相关选项。
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```
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# dcp --help
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```
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--------------------------------------------------------------------------------
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||||
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||||
via: https://www.2daygeek.com/dcp-dat-copy-secure-way-to-transfer-files-between-linux-systems/
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|
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作者：[Vinoth Kumar][a]
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||||
选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
|
||||
校对：[校对者ID](https://github.com/校对者ID)
|
||||
|
||||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||||
|
||||
[a]: https://www.2daygeek.com/author/vinoth/
|
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[b]: https://github.com/lujun9972
|
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[1]: https://www.2daygeek.com/onionshare-secure-way-to-share-files-sharing-tool-linux/
|
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[2]: https://www.2daygeek.com/wormhole-securely-share-files-from-linux-command-line/
|
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[3]: https://www.2daygeek.com/transfer-sh-easy-fast-way-share-files-over-internet-from-command-line/
|
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[4]: https://github.com/tom-james-watson/dat-cp
|
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[5]: https://www.2daygeek.com/dnf-command-examples-manage-packages-fedora-system/
|
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[6]: https://www.2daygeek.com/apt-get-apt-cache-command-examples-manage-packages-debian-ubuntu-systems/
|
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[7]: https://www.2daygeek.com/apt-command-examples-manage-packages-debian-ubuntu-systems/
|
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[8]: https://www.2daygeek.com/pacman-command-examples-manage-packages-arch-linux-system/
|
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[9]: https://www.2daygeek.com/yum-command-examples-manage-packages-rhel-centos-systems/
|
||||
[10]: https://www.2daygeek.com/zypper-command-examples-manage-packages-opensuse-system/
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[11]: data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
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[12]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-1.png
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[13]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-2.png
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[14]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-3.jpg
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[15]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-4.jpg
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[16]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-6.jpg
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[17]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-7.jpg
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[18]: https://www.2daygeek.com/wp-content/uploads/2019/01/Dcp-Dat-Copy-Easy-And-Secure-Way-To-Transfer-Files-Between-Linux-Systems-5.jpg
|
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