但没在系统里找到修改键盘布局的，于是在网上搜交换ctrl和caps lock相关的文章。
.xmodmap文件内容是这样
引用:remove Lock = Caps_Lock
remove Control = Control_L
keysym Control_L = Caps_Lock
keysym Caps_Lock = Control_L
add Lock = Caps_Lock
add Control = Control_L
将左ctrl ,caps lock交换了，在使用中我发现caps lock的使用率极低，而且这样互换后很容易不小心按到左ctrl导致错误切换大小写的问题。
所以我尝试改了下
引用:remove Lock = Caps_Lock
remove Control = Control_R
keysym Control_R = Caps_Lock
keysym Caps_Lock = Control_R
add Lock = Caps_Lock
add Control = Control_R
这样，caps lock 和ctrl就都是ctrl的功能。执行下
xmodmap ~/.xmodmap 2>/dev/null
运行下xmodmap 可以看到和改之前没变化
引用:shift Shift_L (0x32), Shift_R (0x3e)
lock Caps_Lock(0x42)
control Control_L (0x25), Control_R (0x69)
mod1 Alt_L (0x40), Alt_R (0x6c), Meta_L (0xcd)
mod2 Num_Lock (0x4d)
mod3
mod4 Super_L (0x85), Super_R (0x86), Super_L (0xce), Hyper_L (0xcf)
mod5 ISO_Level3_Shift (0x5c), Mode_switch (0xcb)
可以每次开机都运行一下命令，也可以想上文那里一样写道.bashrc或者其他的配置文件
我用的是openbox 桌面，它有一个autostart 文件，我写到了这里面
引用:#
# These things are run when an Openbox X Session is started.
# You may place a similar script in $HOME/.config/openbox/autostart
# to run user-specific things.
#
# If you want to use GNOME config tools...
#
#if test -x /usr/lib/openbox/gnome-settings-daemon >/dev/null; then
# /usr/lib/openbox/gnome-settings-daemon &
#elif which gnome-settings-daemon >/dev/null; then
# gnome-settings-daemon &
#fi
# If you want to use XFCE config tools...
#
#xfce-mcs-manager &
tint2&
xmodmap ~/.xmodmap 2>/dev/null
作者：houyp520