URL: http://www.bigsmoke.us/readline/shortcuts
Ctrl-A: go to the beginning of line,Ctrl-E: go to the end of line,Alt-B: skip one work backward,Alt-F: skip one word forward,Ctrl-U: delete to the beginning of line,Ctrl-K: delete to the end of line,Alt-D: delete to the end of word.Ctrl-r: Incrementally search the line history ⇧ backwardly