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The command "Ctrl + ]" refers to a keyboard shortcut used in various applications, particularly in terminal emulators or text editors. Here's its explanation:

• "Ctrl" or "Control" is a modifier key found on computer keyboards, usually labeled as "Ctrl" or "^". When you press and hold this key while simultaneously pressing another key, it triggers a specific action or command.
• "Ctrl + ]" specifically refers to pressing and holding the "Ctrl" key and then pressing the "]" key.

The actual effect of "Ctrl + ]" may vary depending on the context or application you are using. In some cases, it is used as a shortcut to switch between different windows or tabs within the same application. For instance, in some terminal emulators, pressing "Ctrl + ]" can switch to the next active terminal window.

In other applications, such as text editors or code editors, "Ctrl + ]" is often associated with a command called "Go to Definition" or "Jump to Definition." It allows you to navigate to the definition of a specific function, variable, or class in your code. For example, in some coding environments like Vim or Emacs, "Ctrl + ]" can be used to go to the location where a function is defined, making it easier to understand or modify your code.

It's important to note that the effect of "Ctrl + ]" can differ between applications or operating systems. Therefore, it's always recommended to consult the application's documentation or preferences to understand the specific functionality associated with this command in that particular context.