What is CTTY Windows command?

The Windows ctty command, short for “Change TTY”, is a versatile tool that allows users to change the system console’s device or file handling behavior. By utilizing the ctty command, users can redirect console input and output to different devices or files, offering greater flexibility and control over the command prompt environment. Whether you need to reroute output to a specific file or change the default input device, the ctty command provides a simple yet powerful solution. With its ability to enhance the command prompt experience, the ctty command is a valuable tool for Windows users looking to customize their console interactions.

CTTY Syntax:

ctty device

CTTY Options:

Option	Description
device	Specifies the device to use as the console input and output.

Parameters:

Parameter	Description
device	The device to be set as the console input and output.

Caution

It is recommended to be cautious while using the ctty command as it can alter the console input and output device, potentially leading to loss of control over the system.

CTTY Command Usage Examples:

Display the Current Console TTY Device

ctty

Displays the current console TTY device.

Change the Console TTY Device to COM2

ctty com2

Changes the console TTY device to COM2.

Reset the Console TTY Device Back to Default

ctty con

Resets the console TTY device back to the default.

Verify the Current Console TTY Device

ctty yes

Verifies the current console TTY device configuration.

Set the Console TTY Device to LPT1

ctty lpt1

Sets the console TTY device to LPT1.

Tip

Make sure to run the ctty command with the correct options to avoid unexpected results.

How do I use ctty in Windows?

To use the ctty command in CMD, execute the following command:

ctty /1

What does the ctty command do in Windows?

The ctty command is used to change the default input and output devices in the CMD window.

How can I set a new default input device with ctty in Windows?

You can set a new default input device in CMD using the ctty command with the desired device number. For example:

ctty /1

How to revert back to the original default input device using ctty in Windows?

To revert back to the original default input device, you can use the ctty command with the device number 0. Here’s an example:

ctty /0

Can ctty command be used to change the default output device in Windows CMD?

Yes, the ctty command can be used to change the default output device in the CMD window. You can specify the output device number with the command. For example:

ctty /2

How to display the current default input and output devices using ctty in Windows?

You can display the current default input and output devices in CMD by running the ctty command without any options. This will show the current input and output devices.

Is it possible to change both the default input and output devices simultaneously with ctty in Windows CMD?

Yes, you can change both the default input and output devices simultaneously using the ctty command. Simply specify the desired input and output device numbers in the command. For example:

ctty /1 2

How to get help and see the available options for ctty in Windows?

To see the available options and get help for the ctty command in Windows, you can use the /? option. This will display the command syntax and available options.

ctty /?

Applications of the CTTY Command

1. Connect input and output devices to a specific device or file
2. Change the console input and output device
3. Redirect input and output to different sources
4. Assign an alternate device for input and output communication