/usr/bin/docker-enter

#!/bin/shif [ -e $(dirname "$0")/nsenter ]; then  # with boot2docker, nsenter is not in the PATH but it is in the same folder  NSENTER=$(dirname "$0")/nsenterelse  NSENTER=nsenterfiif [ -z "$1" ]; then  echo "Usage: `basename "$0"` CONTAINER [COMMAND [ARG]...]"  echo ""  echo "Enters the Docker CONTAINER and executes the specified COMMAND."  echo "If COMMAND is not specified, runs an interactive shell in CONTAINER."else  PID=$(docker inspect --format "{
   {.State.Pid}}" "$1")  if [ -z "$PID" ]; then    exit 1  fi  shift  OPTS="--target $PID --mount --uts --ipc --net --pid --"  if [ -z "$1" ]; then    # No command given.    # Use su to clear all host environment variables except for TERM,    # initialize the environment variables HOME, SHELL, USER, LOGNAME, PATH,    # and start a login shell.#"$NSENTER" $OPTS su - root"$NSENTER" $OPTS /bin/su - root  else    # Use env to clear all host environment variables.    "$NSENTER" $OPTS env --ignore-environment -- "$@"  fifi