Sometimes when typing a long command or a commit message in Terminal, you might notice a typo, or want to add or change something. Very likely, you’d use the left-arrow key to move the cursor to the desired position, which sometimes can be a little tedious.
Luckily there’s an easier way: Option-click your Terminal prompt line at the position where you want to change or insert text. Your cursor will then blink right where you wanted it and you can start typing away.
Another way to speed things up is by using the option (alt) modifier key in combination with the arrow-keys (⌥→, ⌥←), which lets you jump the line word by word, which is also a little quicker.