mirror of https://github.com/docker/cli.git
71 lines
2.4 KiB
Markdown
71 lines
2.4 KiB
Markdown
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% DOCKER(1) Docker User Manuals
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% Docker Community
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% JUNE 2014
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# NAME
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docker-cp - Copy files or folders from a container's PATH to a HOSTDIR
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or to STDOUT.
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# SYNOPSIS
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**docker cp**
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[**--help**]
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CONTAINER:PATH HOSTDIR|-
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# DESCRIPTION
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Copy files or folders from a `CONTAINER:PATH` to the `HOSTDIR` or to `STDOUT`.
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The `CONTAINER:PATH` is relative to the root of the container's filesystem. You
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can copy from either a running or stopped container.
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The `PATH` can be a file or directory. The `docker cp` command assumes all
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`PATH` values start at the `/` (root) directory. This means supplying the
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initial forward slash is optional; The command sees
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`compassionate_darwin:/tmp/foo/myfile.txt` and
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`compassionate_darwin:tmp/foo/myfile.txt` as identical.
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The `HOSTDIR` refers to a directory on the host. If you do not specify an
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absolute path for your `HOSTDIR` value, Docker creates the directory relative to
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where you run the `docker cp` command. For example, suppose you want to copy the
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`/tmp/foo` directory from a container to the `/tmp` directory on your host. If
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you run `docker cp` in your `~` (home) directory on the host:
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$ docker cp compassionate_darwin:tmp/foo /tmp
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Docker creates a `/tmp/foo` directory on your host. Alternatively, you can omit
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the leading slash in the command. If you execute this command from your home directory:
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$ docker cp compassionate_darwin:tmp/foo tmp
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Docker creates a `~/tmp/foo` subdirectory.
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When copying files to an existing `HOSTDIR`, the `cp` command adds the new files to
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the directory. For example, this command:
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$ docker cp sharp_ptolemy:/tmp/foo/myfile.txt /tmp
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Creates a `/tmp/foo` directory on the host containing the `myfile.txt` file. If
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you repeat the command but change the filename:
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$ docker cp sharp_ptolemy:/tmp/foo/secondfile.txt /tmp
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Your host's `/tmp/foo` directory will contain both files:
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$ ls /tmp/foo
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myfile.txt secondfile.txt
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Finally, use '-' to write the data as a `tar` file to STDOUT.
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# OPTIONS
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**--help**
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Print usage statement
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# EXAMPLES
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An important shell script file, created in a bash shell, is copied from
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the exited container to the current dir on the host:
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# docker cp c071f3c3ee81:setup.sh .
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# HISTORY
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April 2014, Originally compiled by William Henry (whenry at redhat dot com)
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based on docker.com source material and internal work.
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June 2014, updated by Sven Dowideit <SvenDowideit@home.org.au>
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