Its common place to need to upload and download files to and from a remote Linux server.

To upload and download files from a remote Linux server you can use the scp (secure copy) command.

To download a file you can use:

scp username@ip-or-server-name:~/path/to/file/your/downloading /path/to/location/to/download/to

To upload a file you can use:

scp /path/to/file/your/uploading username@ip-or-server-name:/path/to/location/to/upload/to

Note: It is best practice to connect to remote servers using either a strong unique password or using an SSH key pair.

Refer to How to generate an SSH key and add to authorized_keys