一
修改文件/etc/default/keyboard
修改下面这行：
XKBOPTIONS="ctrl:nocaps"
保存。
二
bash中输入：
sudo dpkg-reconfigure keyboard-configuration
其他
详细设置请看手册man keyboard
下面是man中介绍例子：
EXAMPLES
The following configuration will give you the standard US QWERTY layout
(us). The key <Menu> will act as a compose key (compose:menu) and
<CapsLock> will act as third control key (ctrl:nocaps).
XKBLAYOUT=us
XKBVARIANT=
XKBOPTIONS=compose:menu,ctrl:nocaps
In the following configuration the right <Alt> key (grp:toggle) will
toggle between US QWERTY layout (us) and Greek (gr) layout. The option
grp_led:scroll is ignored on the console but in X in means to use the
ScrollLock keyboard led as indicator for the current layout (US or
Greek).
XKBLAYOUT=us,gr
XKBVARIANT=
XKBOPTIONS=grp:toggle,grp_led:scroll
In the following configuration the <Control>+<Shift> key combination
will toggle (grp:ctrl_shift_toggle) between French keyboard (fr) with‐
out dead keys (nodeadkeys) and British (gb) “Dvorak” (dvorak) keyboard.
The right <Win> key will be a compose-key (compose:rwin) and the right
<Alt> key will function as AltGr (lv3:lalt_switch).
XKBLAYOUT=fr,gb
XKBVARIANT=nodeadkeys,dvorak
XKBOPTIONS=grp:ctrl_shift_toggle,compose:rwin,lv3:ralt_switch
我的翻译很渣，不如机翻，就不翻译了。
