3. Meta-Dot and friends scp ~/source/tree/file.cnikhilm@server.tw.com:. M-. nikhilm@server.tw.com:. Yank the last argument to previous command. M-C-y ~/source/tree/file.c Yank the first argument to previous command.
4. Killing and Yanking C-k Kill text till end-of-line. C-y Yanks it back! M-y Cycle through the kill-ring.
5. Bang through the History! !! Substitute previous command. $ sudo !!