Common keyboard shortcuts for iTerm2

common.itermkeymap

{
  "Key Mappings": {
    "0xf702-0x300000-0x7b": {
      "Label": "Cursor Start ⌘←",
      "Action": 11,
      "Text": "0x01"
    },
    "0xf703-0x300000-0x7c": {
      "Label": "Cursor End ⌘→",
      "Action": 11,
      "Text": "0x05"
    },

    "0xf702-0x280000-0x7b": {
      "Label": "Cursor Word Left ⌥←",
      "Action": 11,
      "Text": "0x1b 0x62"
    },
    "0xf703-0x280000-0x7c": {
      "Label": "Cursor Word Right ⌥→",
      "Action": 11,
      "Text": "0x1b 0x66"
    },

    "0xf702-0x220000-0x7b": {
      "Label": "Select Word Left ⇧←",
      "Action": 45,
      "Text": "0"
    },
    "0xf703-0x220000-0x7c": {
      "Label": "Select Word Right ⇧→",
      "Action": 46,
      "Text": "0"
    },

    "0x7f-0x100000-0x33": {
      "Label": "Delete All ⌘⌫",
      "Action": 11,
      "Text": "0x15"
    },
    "0x7f-0x80000-0x33": {
      "Label": "Delete Word Left ⌥⌫",
      "Action": 11,
      "Text": "0x01b 0x08"
    },

    "0x7a-0x100000-0x6": {
      "Label": "Undo ⌘Z",
      "Action": 11,
      "Text": "0x1f"
    },
    "0x5a-0x120000-0x6": {
      "Label": "Redo ⌘⇧Z",
      "Action": 11,
      "Text": "0x18 0x1f"
    }
  }
}

@xiuyongwu

I'm just wondering why is that.

Because vi has its own keybindings

@xiuyongwu, as @therealklanni correctly pointed out, vi has its own keybindings separate from iTerm, which is why the ⌘ + ➡️ shortcut behaves differently inside vi. The good news is that vi's keybindings are easy to customize to your preference. You can learn more here: Mapping Keys in Vim