DE

↑ ↓ select, Enter open, Esc close

Copy a file from a Docker container to the host

caution rootDockerdebian, ubuntu

Caution: This command changes the system. Understand what it does before you run it.

Adjust the values, the command updates live
root@server
docker cp app:/etc/nginx/nginx.conf /root/nginx.conf

Copies from the container to the host, and the container does not need to be running. For the other direction, swap the arguments: docker cp /root/datei app:/pfad/datei. Directories are copied recursively.

Note: An existing target file is overwritten without confirmation. Docker commands require root or the docker group.

Also searched as

  • docker copy file from container to host
  • docker cp example
  • copy file into docker container

Related one-liners

All in Docker

Copy a file

$cp -ip -- /var/www/vhosts/example.com/httpdocs/.htaccess /var/www/vhosts/example.com/private/htaccess-copy
cautionFilesystem

Create a dated backup copy of a file

$cp -p -- /var/www/vhosts/example.com/httpdocs/.htaccess /var/www/vhosts/example.com/httpdocs/.htaccess.bak-$(date +%F-%H%M)
cautionFilesystem

Back up a Docker volume to a tar archive

#docker run --rm -v app_data:/data:ro -v /root/docker-backup:/backup alpine tar czf /backup/app_data.tar.gz -C /data .
cautionDocker

Change the restart policy of a Docker container

#docker update --restart unless-stopped app
cautionDocker

Clean up unused Docker data

#docker system prune
cautionDocker

Find unhealthy Docker containers

#docker ps --filter health=unhealthy
harmlessDocker

Read first, then run.

The commands on myline.de act directly on servers, files and databases. A wrong path or placeholder can delete data irreversibly or make a server unreachable.

  • All commands are provided without warranty and are not tested on every system.
  • Understand what a command does before running it, and check every placeholder.
  • Make a backup first and, if possible, try it on a test system.
  • You run commands at your own risk. Liability for damages is excluded to the extent permitted by law.