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Added reason to use -it flag #572

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Added reason to use -it flag #572

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Added reason to use -it flag
Sandeep-source Aug 22, 2022
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Update beginner/chapters/alpine.md
Sandeep-source Dec 6, 2022
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Update beginner/chapters/alpine.md
Sandeep-source Dec 29, 2022
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2 changes: 2 additions & 0 deletions beginner/chapters/alpine.md
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Expand Up @@ -53,6 +53,8 @@ $ docker run alpine /bin/sh

Wait, nothing happened! Is that a bug? Well, no. These interactive shells will exit after running any scripted commands, unless they are run in an interactive terminal - so for this example to not exit, you need to `docker run -it alpine /bin/sh`.

Notice the `-it` flag in this modified command. The flag `-i` tells the Docker daemon to start an interactive session, and `-t` command tells the Docker to attach the terminal of the container to the current terminal.

You are now inside the container shell and you can try out a few commands like `ls -l`, `uname -a` and others. Exit out of the container by giving the `exit` command.


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