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34 lines
1.3 KiB
Plaintext
34 lines
1.3 KiB
Plaintext
---
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syntax: markdown
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tags: [tldr, common]
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source: https://github.com/tldr-pages/tldr.git
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---
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# docker container exec
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> Execute a command on an already running Docker container.
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> More information: <https://docs.docker.com/reference/cli/docker/container/exec/>.
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- Enter an interactive shell session on an already-running container:
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`docker {{[exec|container exec]}} {{[-it|--interactive --tty]}} {{container_name}} {{/bin/bash}}`
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- Run a command in the background (detached) on a running container:
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`docker {{[exec|container exec]}} {{[-d|--detach]}} {{container_name}} {{command}}`
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- Select the working directory for a given command to execute into:
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`docker {{[exec|container exec]}} {{[-it|--interactive --tty]}} {{[-w|--workdir]}} {{path/to/directory}} {{container_name}} {{command}}`
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- Run a command in background on existing container but keep `stdin` open:
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`docker {{[exec|container exec]}} {{[-i|--interactive]}} {{[-d|--detach]}} {{container_name}} {{command}}`
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- Set an environment variable in a running Bash session:
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`docker {{[exec|container exec]}} {{[-it|--interactive --tty]}} {{[-e|--env]}} {{variable_name}}={{value}} {{container_name}} {{/bin/bash}}`
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- Run a command as a specific user:
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`docker {{[exec|container exec]}} {{[-u|--user]}} {{user}} {{container_name}} {{command}}`
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