scp is a Unix command and is included in most Unix and Unix-based operating systems such as Linux and macOS. If you are using a Windows system, you will need to use a different tool such as Putty or WinSCP to transfer files between servers. These tools work similarly to scp and provide a graphical interface for copying files over SSH.

Regarding your second question, by default scp will overwrite existing files in the target directory. However, you can use the "-n" option to avoid overwriting files and to preserve the existing files in the target directory. For example:  
scp -rn user_name@server_A:~/Documents/training_results user_name@server_B:~/training_results
scp is a Unix command and is included in most Unix and Unix-based operating systems such as Linux and macOS. If you are using a Windows system, you will need to use a different tool such as Putty or WinSCP to transfer files between servers. These tools work similarly to scp and provide a graphical interface for copying files over SSH.

Regarding your second question, by default scp will overwrite existing files in the target directory. However, you can use the "-n" option to avoid overwriting files and to preserve the existing files in the target directory. For example:  
scp -rn user_name@server_A:~/Documents/training_results user_name@server_B:~/training_results
user
This will copy the contents of the "training_results" directory from server A to server B, but will not overwrite any existing files in the target directory on server B.

I hope this helps! Let me know if you have any other questions.

Best regards,

[Your Name]
assistant
scp is a Unix command and is included in most Unix and Unix-based operating systems such as Linux and macOS. If you are using a Windows system, you will need to use a different tool such as Putty or WinSCP to transfer files between servers. These tools work similarly to scp and provide a graphical interface for copying files over SSH.

Regarding your second question, by default scp will overwrite existing files in the target directory. However, you can use the "-n" option to avoid overwriting files and to preserve the existing files in the target directory. For example:  
scp -rn user_name@server_A:~/Documents/training_results user_name@server_B:~/training_results
user
This command will copy the training_results directory from server_A to server_B, but it will not overwrite any existing files in the target directory.

In summary, scp is a command-line tool for copying files over SSH, and it can be used to transfer files between servers. The "-n" option can be used to avoid overwriting existing files in the target directory.
assistant
scp is a Unix command and is included in most Unix and Unix-based operating systems such as Linux and macOS. If you are using a Windows system, you will need to use a different tool such as Putty or WinSCP to transfer files between servers. These tools work similarly to scp and provide a graphical interface for copying files over SSH.

Regarding your second question, by default scp will overwrite existing files in the target directory. However, you can use the "-n" option to avoid overwriting files and to preserve the existing files in the target directory. For example:  
scp -rn user_name@server_A:~/Documents/training_results user_name@server_B:~/training_results
user
This will copy the contents of the "training_results" directory from server A to server B, but will not overwrite any existing files in the target directory on server B.

I hope this helps! Let me know if you have any other questions.

Best regards,

[Your Name]
assistant