From host to container: docker cp ./local/file.txt container:/app/ It's cruel to use the word container in a "cheatsheet" when it's actually a placeholder. U

From host to container: docker cp ./local/file.txt container:/app/ It's cruel to use the word container in a "cheatsheet" when it's actually a placeholder. Using ${container_id_or_name}:/app would make it more obvious and would actually error out if the user attempts to copy-paste In the spirit of being helpful, this is also good fun (but I think it does require a copy of /bin/tar in the image): tar -cf - my-dir my/file.txt | docker cp - ${container_id}:/my/dest/ --- the "-e" also has two different syntaxes, depending on if one needs to rename the variable as it goes into the container: export AWS_ACCESS_KEY_ID docker run -e AWS_ACCESS_KEY_ID my.image # versus docker run -e AWS_KEY=$AWS_ACCESS_KEY_ID my.image