Unlike all other Mac OS apps, iTerm2 doesn’t allow you to use ⌥+← or ⌥+→ to jump over words.
You also can’t delete a whole word using ⌥+backspace.
Here’s how you can configure iTerm2 on Mac OS to allow you to do just that.
First you need to set your left ⌥ key to act as an escape character. This can be done going to iTerm2 > Preferences > Profiles > Keys. Fetching up the following preference panel and options.
By doing this you can now use ⌥+backspace to delete a whole word.
Next, click the plus icon to add a new Key Mapping.
Press the key command: ⌥+←; select Send Escape Sequence from the dropdown; and lastly input the character ‘b’.
Repeat for ⌥+→, but this time use the character ‘f’.
And that’s it. Simple really once you know how. But will save you a whole heap of pain in the long run. So totally worth it.