Securely Transferring Files Between Linux Machines with SCP（linuxscp文件夹）
When transferring files between Linux machines, one of the most secure and efficient methods is a secure copy or SCP. It’s secure in the sense that you can log in to another machine without the need for passwords, since an ssh key is used for authentication instead. Moreover, the scp command makes sure the file is copied over with secure encryption and no one will be able to gain access to the information. In this article, I will provide an introduction to scp and demonstrate how to use it to securely move files between Linux systems.
To get started, you will need to have access to both the machine from which you are sending the files, and the machine on which you are receiving them. This can be done either through a command-line interface, or through a GUI like the Filezilla or Winscp programs. If you are using a command line, then you should make sure that you have already set up an ssh key on both machines. Once the ssh key is in place, you can now use the scp command to move the files.
To transfer files, the basic syntax of the command is:
scp your_file username@hostname:/destination
Here, “username” is the username on the remote machine, “hostname” is the hostname or IP address of the remote machine, and “/destination” is the full path to the directory on the remote machine in which you wish to copy the file. As an example, let’s say you wanted to copy the “myfile.txt” from the local machine to a new folder on the remote machine called “remote_folder”. You would run the following command:
scp myfile.txt username@hostname:/remote_folder
If you need to transfer multiple files, you can also use the “*” wildcard character. For example, to transfer all text files in the current directory, you would use:
scp *.txt username@hostname:/remote_folder
If you are running on a GUI, you can use a program like Filezilla or Winscp to transfer the files. These programs provide a graphical interface for doing a secure copy, and make it easier to transfer multiple files, folders, or even the entire directory tree.
It is important to note that the scp command will not copy hidden files or folders by default. If you need to transfer these as well, you can add the “-r” flag to your command to let it know to include them.
Overall, the scp command is a very useful tool for securely transferring files between Linux systems. While we looked at its most basic syntax here, there are many more options and features that can be used to customize its behaviour. For more information about using scp, please refer to the man page.
