Software⏱️ 2 min read📅 2026-05-30

How to Fix: Error "The input device is not a TTY"

Error The input device is not a TTY in Jenkinsfile

Quick Answer: Use the `-t` flag with `docker run` to specify a tty, e.g. `docker run -v $PWD:/foobar -it --tty cloudfoundry/cflinuxfs2 /foobar/script.sh

To resolve the 'Error "The input device is not a TTY"' issue when running a script from within a Docker container, you can utilize the `-t` flag in combination with `stdin` to redirect standard input.

⚠️ Common Causes

  • Running a command in non-interactive mode without redirecting standard input.

🔧 Proven Troubleshooting Steps

Method 1: Redirecting Standard Input with `-t` Flag

  1. Step 1: Update your Docker run command to include the `-t` flag and redirect standard input to `/dev/null`: `docker run -v $PWD:/foobar -it --rm --stdin --tty cloudfoundry/cflinuxfs2 /foobar/script.sh < /dev/null

Method 2: Using `docker run` Options for Non-Interactive Mode

  1. Step 1: Update your Docker run command to use the `--no-pwd` and `--no-new-privileges` options: `docker run -v $PWD:/foobar --rm --no-pwd --no-new-privileges cloudfoundry/cflinuxfs2 /foobar/script.sh

💡 Conclusion

By implementing these solutions, you can effectively resolve the 'Error "The input device is not a TTY"' issue and run your script from within a Docker container without requiring interactive mode.

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