"You should try to use winpty (which is installed by default with Git-Bash) and thus run:

winpty docker run --rm -v "/c/users/vipul rao/documents/github/wappalyzer:/opt/wappalyzer" -it wappalyzer/dev

If this works, you may want to set a Bash alias to avoid manually prepending winpty all the time:

echo "alias docker='winpty docker'" >> ~/.bashrc


echo "alias docker='winpty docker'" >> ~/.bash_profile

To resolve the "the input device is not a TTY. If you are using mintty, try prefixing the command with 'winpty'" error, you can try the following:

  1. If you're using Git Bash or another terminal emulator like mintty, try prefixing your command with 'winpty'.
  2. winpty [your command here]
  3. This error often occurs when running certain commands that require interaction with the terminal in a non-TTY environment.
  4. Make sure you're running the command in an appropriate environment, such as the Windows Command Prompt or PowerShell.
  5. If you're using Docker, ensure that Docker Desktop is installed and running properly on your system.
  6. Check the syntax of your command for any mistakes or typos.
  7. If you're encountering this error with Docker commands, ensure that Docker is correctly configured and accessible from your terminal.
  8. Consider updating your terminal emulator, Docker, or any related software to the latest version, as newer releases may address compatibility issues.
"Docker and git bash: the input device is not a TTY. If you are using mintty, try prefixing the command with 'winpty'"


winpty -Xallow-non-tty docker exec -it service /bin/bash

It worked for me."

"On Windows 10 with Git Bash, this works for me:

winpty docker exec -it "CONTAINER ID" sh

"Remove the -it from your CLI to make it non-interactive and remove the TTY. If you don't need either, e.g., running your command inside a Jenkins or cron script, you should do this.

Or you can change it to -i if you have input piped into the docker command that doesn't come from a TTY. If you have something like 'xyz | docker ...' or 'docker ...

Or you can change it to -t if you want TTY support but don't have it available on the input device. Do this for apps that check for a TTY to enable color formatting of the output in your logs or when you later attach to the container with a proper terminal.

Or if you need an interactive terminal and aren't running in a terminal on Linux or MacOS, use a different command-line interface. PowerShell is reported to include this support on Windows.

What is a TTY? It's a terminal interface that supports escape sequences, moving the cursor around, etc., that comes from the old days of dumb terminals attached to mainframes. Today it is provided by the Linux command terminals and SSH interfaces. See the Wikipedia article for more details.

To see the difference of running a container with and without a TTY, run a container without one: 'docker run --rm -i ubuntu bash'. From inside that container, install vim with 'apt-get update; apt-get install vim'. Note the lack of a prompt. When running vim against a file, try to move the cursor around within the file."

"For those who struggle with this error in Git Bash on Windows, just use PowerShell where -it works perfectly."

"For those using WSL and running Docker for Windows with cmder or ConEmu:

The trick is not to use Docker which is installed on Windows at /mnt/c/Program Files/Docker/Docker/resources/bin/docker.exe but rather to install the Ubuntu/Linux Docker.

It's worth pointing out that you can't run Docker itself from within WSL, but you can connect to Docker for Windows from the Linux Docker client.

Install Docker on Linux:

sudo apt-get install apt-transport-https ca-certificates curl software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install docker-ce

Connect to Docker for Windows on the port 2375, which needs to be enabled from the settings in Docker for Windows:

docker -H localhost:2375 run -it -v /mnt/c/code:/var/app -w "/var/app" centos:7

Or set the docker_host variable which will allow you to omit the -H switch:

export DOCKER_HOST=tcp://localhost:2375

You should now be able to connect interactively with a TTY terminal session."