docker:tldr:f29a7
docker: Set an environment variable in a running Bash session.
$ docker exec --interactive --tty --env ${variable_name}=${value} ${container_name} ${-bin-bash}
try on your machine
The command you provided is used to run a new command inside a Docker container.
Here's the breakdown of each component:
docker exec
is the command to execute a command within a running Docker container.--interactive
or-i
keeps STDIN open, allowing interaction with the command.--tty
or-t
allocates a pseudo-TTY, making the output readable.--env
sets an environment variable in the container.${variable_name}
specifies the name of the environment variable to be set.=${value}
assigns the value to the environment variable.
${container_name}
specifies the name or ID of the container where the command will be executed.${-bin-bash}
is the command that will be run inside the container. In this case, it executes the Bash shell.
To summarize, this command sets an environment variable and executes the Bash shell (/bin/bash
) interactively within a Docker container specified by its name or ID.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.