ubuntu 18.04 鼠标多功能键绑定键盘按键

首先安装两个软件包：

sudo apt install xbindkeys
sudo apt install xautomation

然后在命令行输入xev | grep button，这个是用来检测鼠标的键对应的编号，如下所示：

jia@jia:~$ xev | grep button
    state 0x0, button 1, same_screen YES
    state 0x100, button 1, same_screen YES
    state 0x0, button 1, same_screen YES
    state 0x100, button 1, same_screen YES
    state 0x0, button 3, same_screen YES
    state 0x400, button 3, same_screen YES
    state 0x0, button 2, same_screen YES
    state 0x200, button 2, same_screen YES
    state 0x0, button 8, same_screen YES
    state 0x0, button 8, same_screen YES
    state 0x0, button 9, same_screen YES
    state 0x0, button 9, same_screen YES
    state 0x0, button 9, same_screen YES
    state 0x0, button 9, same_screen YES
    state 0x0, button 4, same_screen YES
    state 0x800, button 4, same_screen YES
    state 0x0, button 5, same_screen YES
    state 0x1000, button 5, same_screen YES
    state 0x0, button 5, same_screen YES
    state 0x1000, button 5, same_screen YES
    state 0x0, button 5, same_screen YES
    state 0x1000, button 5, same_screen YES
    state 0x0, button 2, same_screen YES
    state 0x200, button 2, same_screen YES
    state 0x0, button 2, same_screen YES
    state 0x200, button 2, same_screen YES
    state 0x0, button 3, same_screen YES
    state 0x400, button 3, same_screen YES
^C

其中我的鼠标左键编号为1，右键为3，滚轮键为2。
输入xbindkeys --defaults > $HOME/.xbindkeysrc，会在主目录下生成一个.xbindkeysrc文件，需要在这里面进行鼠标键和命令的映射。映射的格式如下：

"命令"
  关联的键

比如：

"xbindkeys_show"
  control+shift + q

表示 按下 control+shift + q键就会执行xbindkeys_show命令。

在里面添加一个映射：

"xte 'key Return'"
  b:2

其中b:2就代表鼠标中键按下，2是刚才检测出来的鼠标中中键的编号，b代表鼠标（button）。也就是说按下中键的时候会执行xte 'key Return'这个命令。xte其实就是用来拟键盘和鼠标事件的工具，执行xte 'key Return'命令就相当于按下了回车键并松开。xte的命令如下：

Commands:
  key k          Press and release key k
  keydown k      Press key k down
  keyup k        Release key k
  str string     Do a bunch of key X events for each char in string
  mouseclick i   Click mouse button i
  mousemove x y  Move mouse to screen position x,y
  mousermove x y Move mouse relative from current location by x,y
  mousedown i    Press mouse button i down
  mouseup i      Release mouse button i
  sleep x        Sleep x seconds
  usleep x       uSleep x microseconds

xte一些常用的键盘按键：

Some useful keys (case sensitive)
  Home
  Left
  Up
  Right
  Down
  Page_Up
  Page_Down
  End
  Return（即Enter键)
  BackSpace
  Tab
  Escape
  Delete
  Shift_L
  Shift_R
  Control_L
  Control_R
  Meta_L
  Meta_R
  Alt_L
  Alt_R
  Multi_key

Depending on your keyboard layout, the "Windows" key may be one of the
Super_ keys or the Meta_ keys.

然后再执行xbindkeys -f .xbindkeysrc即可生效。