By: Linto
JUN 15,2017
Technical
To copy files from a local system to a remote server or from a remote server to a local system, we can use the command 'scp' . 'scp' stands for 'secure copy', and it is a command used for copying files through the terminal. We can use 'scp' on Linux, Windows, and Mac. The basic syntax for copying files from the local system to the remote server is, Here, the source is the source location, i.e., from where we want to copy files. Username is the user in the remote system, host is the address of the server, and destination is the location to which we want to copy files. Example: Copying a single file from Server to the local system Syntax is, Example:Copying Single File to Server from Local System
“ scp source/filename [username]@[host]: destination ”
scp /home/myfile.docx root@example.com:/opt/odoo/
“ scp [username]@[host]:source/filename [destination] ”
scp root@example.com:/opt/odoo/myfile.docx /home/
Copying Multiple Files
Suppose we need to copy multiple files from a location. Instead of copying the complete folder, we can achieve this by specifying the required files in the same command separated by space. i.e, it should be like,
scp source/file file2 file3 [user@server]/destination
If needed, it is also possible to copy from different locations. We just need to provide them in a space-separated list.
Copying Folder
Suppose we need to transfer a folder and its contents from a server or to a server instead of a file. We need a small change in the command. We need to use '-r' to specify that we need to recursively process the folder and its contents.
Example:
scp -r /home/myfolder root@example.com:/opt/odoo/
It will copy the folder and all the files in the folder to the destination location.
scp -r /home/myfolder/* root@example.com:/opt/odoo/
This command will copy all the files in the specified location to the destination
It is also possible to copy files between two remote servers. If we need to copy files from server-1 to server-2, we can use the following command,
scp [user@server-1]/source/file [user@server-2]/destination/
Copy Files To a Specific Port (Linux)
To copy files to the server at a specific port, we need to make some changes in the ssh configuration. First, we need to install ssh, typing the command
“apt-get install openssh-server”.
After ssh is installed, go to /etc/ssh/ and edit the file sshd_config as root. Change the port number to the one we want to use. By default, the port is set to 22. We can change it. After changing the port number, we may need to restart ssh.
/etc/init.d/ssh restart
Now we have to set a new port for listing ssh. In order to copy files, we also have to specify the port number. It should be like this,
scp -P [port-no] [user@server]/source/file destination.
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