Ubuntu 将 capslock 映射成 esc

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sudo apt-get install dconf-tools
# 使 caps 成为 esc 按键
dconf write /org/gnome/desktop/input-sources/xkb-options "['caps:escape']"
# 交换 caps 和 esc 按键
dconf write "/org/gnome/desktop/input-sources/xkb-options" "['caps:swapescape']"

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Caps Lock behavior

┌────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
│Option                         Description                                                                          │
├────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┤
│caps:internal                  Caps Lock uses internal capitalization; Shift "pauses" Caps Lock                     │
│caps:internal_nocancel         Caps Lock uses internal capitalization; Shift does not affect Caps Lock              │
│caps:shift                     Caps Lock acts as Shift with locking; Shift "pauses" Caps Lock                       │
│caps:shift_nocancel            Caps Lock acts as Shift with locking; Shift does not affect Caps Lock                │
│caps:capslock                  Caps Lock toggles normal capitalization of alphabetic characters                     │
│caps:shiftlock                 Caps Lock toggles Shift Lock (affects all keys)                                      │
│caps:swapescape                Swap Esc and Caps Lock                                                               │
│caps:escape                    Make Caps Lock an additional Esc                                                     │
│caps:escape_shifted_capslock   Make Caps Lock an additional Esc, but Shift + Caps Lock is the regular Caps Lock     │
│caps:backspace                 Make Caps Lock an additional Backspace                                               │
│caps:super                     Make Caps Lock an additional Super                                                   │
│caps:hyper                     Make Caps Lock an additional Hyper                                                   │
│caps:menu                      Make Caps Lock an additional Menu key                                                │
│caps:numlock                   Make Caps Lock an additional Num Lock                                                │
│caps:ctrl_modifier             Make Caps Lock an additional Ctrl                                                    │
│caps:none                      Caps Lock is disabled                                                                │
│                                                                                                                    │
└────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┘