When I'm working on some remote host via SSH, I often need to upload or download files.  With my current setup, I need to switch to another terminal and conjure up rsync or sftp, which can be a pain if the target host isn't registered in DNS (need to copy+paste IP address) or if I'm working in a directory a few levels down (need to re-type the whole path).Is there a command-line tool that combines SSH and SFTP?  Ideally, it would start a remote shell like normal SSH does but at the press of some key combination, it would switch to an SFTP prompt allowing me to up- download files from the directory the shell is currently in.
Is there a command-line application that combines SSH and SFTP?
ssh;command line;remote;sftp