extract a few members from tar archive and pipe through network

tar -xzOf file.tar.gz file_you_want_to_extract | ssh user@host 'cat > /path/to/destination_file'

• -x : Extract
• -z : Through gzip
• -f : Take in a file as the input.
• -O : Extract to stdout

The file_you_want_to_extract is extracted from file.tar.gz to the standard output, piped into ssh, which runs cat on the remote host and writes its standard in to the remote destination_file. Of course, you'll want to ensure you have write permission to your desired destination file on the remote host.