Docker execute command in container

Code examples

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docker interactive shell

docker exec -it [containerid/name] [shell]

#Example
docker exec -it fa80b69 bash
#if its an apline container use "sh" instead of "bash"
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how to bash into docker container

docker exec -it nginx /bin/bash
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docker exec bash

//For executing commands in the container
docker exec -it <CONTAINER_NAME> bash
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docker run command on container

sudo docker exec -it <container name> <command>
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how run dockerfile

# Use the official image as a parent image.
FROM node:current-slim

# Set the working directory.
WORKDIR /usr/src/app

# Copy the file from your host to your current location.
COPY package.json .

# Run the command inside your image filesystem.
RUN npm install

# Inform Docker that the container is listening on the specified port at runtime.
EXPOSE 8080

# Run the specified command within the container.
CMD [ "npm", "start" ]

# Copy the rest of your app's source code from your host to your image filesystem.
COPY . .

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