[Terminal] Docker-machine env shortcut

.bash-profile

# 1. Add this to your .bash-profile or .zshrc and restart your terminal
function dm-env () {
  if [ -z "$1" ] ; then
    echo "\e[0;31mERROR:\e[0m no argument supplied"
    return;
  fi

  eval "$(docker-machine env $1)"
  echo -e "\033[33;32mSUCCESS:\e[0m docker-machine environment set to: $1"
}

# Usage:
$ dm-env your-docker-machine-name

# Example:
$ dm-env dev
=> SUCCESS: docker-machine environment set to: dev 

# Example without argument:
$ dm-env
=> ERROR: no argument supplied