Stop using the arrow keys and navigate the command line more quickly with
ctrl+A: moves to the start of the line
ctrl+E: moves to the end of the line
ctrl+B: move back on character
ctrl+F: move forward one character
esc+B: move back one word
esc+F: move forward one word
ctrl+U: delete from the cursor to the beginning of the line
ctrl+K: delete from the cursor to the end of the line