Readline

shortcut	outcome
`ctrl-a`	move to the beginning of the line
`ctrl-b`	move backward one character
`ctrl-d`	delete the character forward
`ctrl-e`	move to the end of the line
`ctrl-f`	move forward one character
`ctrl-o`	create new line below cursor
`ctrl-p`	move up one line
`Meta-f`	move forward one word
`Meta-p`	move back one word
`ctrl-n`	move down one line
`ctrl-h`	delete the character before the cursor
`ctrl-k`	cut from the cursor to the end of the line
`ctrl-l`	clearn the screen
`ctrl-o`	open a new line below the current line
`ctrl-t`	swap the character before the cursor with the character under the cursor
`ctrl-v`	move to last character in file
`ctrl-w`	delete the word before the cursor
`ctrl-y`	yank (paste)
`ctrl-k`	delete from the cursor to the end of the line

On a Mac, Meta is ctrl + opt.