* `esc` + `R` will (usually) erase the whole line (undoing everything)
* `^A` moves the cursor to the start of the line
* `^E` moves the cursor to the end of the line
* `^B` and `^F` work like left and right arrows
* `esc` + `B` and `esc` + `F` move left and right a whole word at a time (on the Mac, Option-`left` and Option-`right` do the same)
* `esc` + `R` will (usually) erase the whole line (undoing everything)
* `^A` moves the cursor to the start of the line
* `^E` moves the cursor to the end of the line
* `^B` and `^F` work like left and right arrows
* `esc` + `B` and `esc` + `F` move left and right a whole word at a time (on the Mac, Option-`left` and Option-`right` do the same)