Simple file transfer

I use scp.

scp source desthost:/path/to/dest/.

to copy from the local machine to the remote machine, or

scp srchost:/path/to/file/file .

to copy from a remote machine to the local machine.

If the username is not the same on the remote machine,

scp user@srchost:/path/to/file/file .

I usually mount a directory through ssh via FUSE and sshfs.

Mount:

$ sshfs name@server:/path/to/dir /path/to/mount/point

Unmount:

$ fusermount -u /path/to/mount/point

I use netcat (if I don't need security)

nc -l -p 1234 < send_file   # 'server'
nc x.y.z.t 1234 > receive_file  # 'client'