[FAQ Bot] NEW: What's the difference between -i and -t in docker run -it?

_questions/data-engineering-zoomcamp/module-1/040_fa905a3e7b_docker-run-i-vs-t-difference.md

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+---
+id: fa905a3e7b
+question: What's the difference between -i and -t in docker run -it?
+sort_order: 40
+---
+
+```markdown
+## Difference between -i and -t in docker run (-it)
+
+When running containers interactively, Docker provides two commonly used flags:
+
+- `-i` (interactive): keeps the container’s STDIN open, even if it is not attached to a terminal. This allows you to send input to the process inside the container.
+  Example:
+  ```bash
+  echo "print(2+2)" | docker run -i python
+  ```
+
+- `-t` (tty): allocates a pseudo-terminal (TTY) for the container. This provides proper terminal formatting (line breaks, colors, prompts).
+  Example:
+  ```bash
+  docker run -t ubuntu date
+  ```
+
+Using both flags together (`-it`) gives you both an open input stream and a real terminal interface. This is typically what you want for an interactive shell session:
+
+  ```bash
+  docker run -it ubuntu bash
+  ```
+
+In short:
+- `-i` = keep STDIN open
+- `-t` = allocate a TTY
+- `-it` = both, for interactive shells
+```