ubuntu修改键位

将大写锁定Caps Lock和左Control键互换，修改~/.Xmodmap文件内容为：
remove control = Control_L
remove control = Caps_Lock
remove lock = Caps_Lock
remove lock = Control_L
keycode 66 = Control_L NoSymbol Control_L
keycode 37 = Caps_Lock NoSymbol Caps_Lock
add control = Control_L
add lock = Caps_Lock

重启即可生效。
缺点：
切换tty时会失效，锁屏后再次登陆会失效。
失效的时候可以使用命令：
xmodmap .Xmodmap
来恢复之前的设置。
参考http://forum.ubuntu.org.cn/viewtopic.php?t=463634


将Caps Lock键修改为Control键，并且Shift+CapsLock为CapsLock。修改~/.Xmodmap文件内容为：
clear lock
clear control
add control = Caps_Lock Control_L Control_R
keycode 66 = Control_L Caps_Lock NoSymbol NoSymbol
参考https://traceflight.github.io/tech/modify-caps-lock-to-ctrl.html