在命令行中触发UP键？

Question

Is there a way to trigger/fire the UP key in the command line?

Instead of me having to press UP key.

Answer 1

如果已经输入xvkbd安装，你一个使用它的-text选项为任何字符串发送到焦点窗口为：

xvkbd  -text "\[Up]"

Answer 2

This sounds like an XY Problem to me.

If what you really want to do is to be able to access and execute a previous command in the history without pressing up-arrow, there are various ways to do that:

• !! will execute the previous command
• Ctrl - r string will allow you to search for previous commands
• !string searches for a command beginning with "string"
• !?string searches for a command containing with "string"

Answer 3

You can bind Up to different key combination using xmodmap .

The following works for me binding the key to Alt Gr - W (right Alt on some keyboard layouts).

xmodmap -e 'keycode 25 = w W Up Up Up'