Script to set the current AWS profile

awsenv.sh

#!/bin/bash -eu
profile=${1:?usage: eval \`awsenv <profile>\`}
xp() { echo export "$*"; }
found=false
while read key eq value; do
  if ! $found; then
    if [ "$key" = "[$profile]" ]; then
      found=true
      xp AWS_DEFAULT_PROFILE=$profile
    fi
  else
    case "$key" in
      aws_access_key_id|aws_secret_access_key|aws_session_token|aws_keyname|aws_keypath)
        xp ${key^^}=$value ;;
      ca_bundle) xp AWS_${key^^}=$value ;;
      output|region) xp AWS_DEFAULT_${key^^}=$value ;;
      ""|"[$profile]") ;;
      *) found=false ;;
    esac
  fi
done < ~/.aws/credentials < ~/.aws/config