The scp command is used for remote file copying in Linux. It allows copying files or directories between multiple Linux systems, similar to the functionality of the cp command. But instead of local copying, it operates to another host over the network.
Syntax format: scp [parameters] file_or_directory [remote_server_info]
-1：Use SSH protocol version 1；
-2：Use SSH protocol version 2；
-4：Use ipv4；
-6：Use ipv6；
-B：Run in batch mode；
-C：Use compression；
-F：Specify the SSH configuration file；
-i：identity_file Read the key file used for the transfer from the specified file (e.g., Amazon Cloud .pem file); this parameter is passed directly to SSH；
-l：Specify bandwidth limit；
-o：Specify the SSH options to use；
-P：Specify the port of the remote host；
-p：Preserve the file's last modification time, last access time, and permission mode；
-q：Do not display the copy progress；
-r：Copy recursively。
Parameters
- Source file: Specify the source file to be copied.
- Destination file: The target file. The format is user@host:filename (where filename is the name of the target file).
Example
The scp command to copy from remote to local is similar to the one above; you just need to swap the order of the last two parameters.
1.Copy files from a remote machine to the local directory
scp root@10.10.10.10:/opt/soft/nginx-0.5.38.tar.gz /opt/soft/
Download the nginx-0.5.38.tar.gz file from the /opt/soft/ directory on the machine 10.10.10.10 to the local /opt/soft/ directory.
2.Copy OpenVPN from Amazon Cloud to the local directory
scp -i amazon.pem ubuntu@10.10.10.10:/usr/local/openvpn_as/etc/exe/openvpn-connect-2.1.3.110.dmg openvpn-connect-2.1.3.110.dmg
Download the OpenVPN installation file from the machine 10.10.10.10 to the current local directory.
3.Copy from a remote machine to the local machine
scp -r root@10.10.10.10:/opt/soft/mongodb /opt/soft/
Download the mongodb directory from /opt/soft/ on the machine 10.10.10.10 to the local /opt/soft/ directory.
4.Upload a local file to a specified directory on a remote machine.
scp /opt/soft/nginx-0.5.38.tar.gz root@10.10.10.10:/opt/soft/scptest
# Specify the port 2222
scp -rp -P 2222 /opt/soft/nginx-0.5.38.tar.gz root@10.10.10.10:/opt/soft/scptest
Copy the nginx-0.5.38.tar.gz file from the local /opt/soft/ directory to the /opt/soft/scptest directory on the remote machine 10.10.10.10.
5.Upload a local directory to a specified one on a remote machine.
scp -r /opt/soft/mongodb root@10.10.10.10:/opt/soft/scptest
Upload the local directory /opt/soft/mongodb to the /opt/soft/scptest directory on the remote machine 10.10.10.10.
